Prophecies about Bush in the Eastern Sacred Books:

Ramayana and Mahabharata: Book III: The Death of the King.

...And in every bush and thicket herds of lightsome monkeys play... Why is it that Ramayana mentions bush and monkey on the same line?

Ramayana and Mahabharata: Book III: The Death of the King

"Mark, my love," so Rama uttered, "every bush and tree and flower, Tinged by radiant light of morning sparkles in a golden shower... (Reminiscence and allusion to Bush's favorite: "Mark my words ...")

Ramayana and Mahabharata: Book III: The Death of the King

Evening spread its holy stillness, bush and tree its magic felt, As the Gods in Brahma's mansions, exiles in their cottage dwelt. - And this is obviously an allusion to future use of Iranian/Iraqi exiles ...

From the Zoroastrian Dadestan-i Denig, chapters 34-37:

... He also appointed unto our forefathers the equipment which is their own, ... as 'the disintegration of material beings;' he also entrusted the demon Bushasp ... The Bundahishn ("Creation"), or Knowledge from the Zand. The demon Bushasp is she who causes slothfulness; Sej is the fiend (druj) who causes annihilation; and the demon Niyaz is he who causes distress. ... Interesting enough that the demon Bushasp is she. What would that mean?

From Shakuntala, Part II.

..."Fear not," the Prince replied; "I come!" and sprang across the burning bushes, where he saw a snake, a king of serpents, lying curled in a great ring...

Here's another premonition of future struggles: Sakoontala reveals that Anasuya, a pointed blade of Kusa grass has pricked her foot, and her bark-mantle is caught in the branch of a Kuruvaka Bush. She asks the King if he could be so good as to wait for her until she's disentangled the Kuruvaka Bush.

Prophecies of the Good Battling Against the Evil Forces

(But that may disprove the idea that The Tenth Avatar Battling the Forces of Evil is Bush. Besides, the evil demon Bushyasta (Bushasp) is a female, then who's the real Bush? Or is it that he just enables ("across the burning bushes") a transformation of the Prince after being bitten by the snake?)

Avesta Chapter 24 lists all the major forces of evil involved: ...The demon Vareno is he who causes illicit intercourse, as it says thus: 'Vareno the defiling (alai).' The demon Bushasp is she who causes slothfulness; Sej is the fiend (druj) who causes annihilation; and the demon Niyaz is he who causes distress.

The Supreme Commander of the Forces of Good pledges he will win the Battle: ...'I drive away Buidhi, I drive away the offspring of Buidhi 'I drive away Kundi, I drive away tle offspring of Kundi 'I drive away the gaunt Bushyasta, I drive away the long-handed Bushyasta; I drive away Muidhi, I drive away Kapasti... ...'It destroys Angra Mainyu, who is all death; it destroys Aeshma, the fiend of the wounding spear; it destroys the yellow Bushyasta; it destroys the contagion of Aekha; it destroys the fiend of death, Apaosha; it destroys the non-Aryan nations... - Now, the demon Bushyasta is a yellow, long-handed and gaunt. And it (he or she? we do not know yet) most likely belongs to a non-Aryan nation.

And finally forces of good prevail: ...'Aeshma is driven away; away the Nasu; away direct defilement, away indirect defilement. 'Khru is driven away, away Khruighni; away Buidhi, away the offspring of Buidhi; away Kundi, away the offspring of Kundi. 'The gaunt Bushyasta is driven away; away Bushyasta, the long-handed; away Muidhi, away Kapasti... 'Angra Mainyu, who is all death, flees away in fear; Aeshma, the evil-doing Peshotanu, flees away in fear; the long-handed Bushyasta flees away in fear; all the Daevas unseen and the Varenya fiends flee away in fear... 'From whom Angra Mainyu, who is all death, flees away in fear; from whom Aeshma, the evil-doing Peshotanu, flees away in fear; from whom the long-handed Bushyasta flees away in fear; from whom all the Daevas unseen and the Varenya fiends flee away in fear... Bushyasta flees away in fear; all the Daevas unseen and the Varenya flees away in fear

Evidence and Supporting Material:

AVESTA: KHORDA AVESTA (Book of Common Prayer)

97. 'From whom Angra Mainyu, who is all death, flees away in fear;
from whom Aeshma, the evil-doing Peshotanu, flees away in fear;
from whom the long-handed Bushyasta flees away in fear; from whom
all the Daevas unseen and the Varenya fiends flee away in fear.

134. 'Angra Mainyu, who is all death, flees away in fear; Aeshma,
the evil-doing Peshotanu, flees away in fear; the long-handed
Bushyasta flees away in fear; all the Daevas unseen and the Varenya
fiends flee away in fear.
135. 'Oh! may we never fall across the rush of Mithra, the lord
of wide pastures, when in anger! May Mithra, the lord of wide
pastures, never smite us in his anger; he who stands up upon this
earth as the strongest of all gods, the most valiant of all gods,
the most energetic of all gods, the swiftest of all gods, the
most fiend-smiting of all gods, he, Mithra, the lord of wide pastures.

'For his brightness and glory, I will offer him a sacrifice worth
being heard....

Dadestan-i Denig ('Religious Decisions')

And when he who is all-watchful and all-knowing had arranged the means of opposing the fiend, there came for destroying, like a general leader (vispvar), that fiend of deceiving nature, the harassing, rushing, evil-wishing, primeval (pesh) contender, together with the demons Akomano ('evil thought'), Aeshm ('wrath'), Zarman ('decrepitude'), Bushasp ('lethargy'), craving distress, bygone luck, Vae, Vareno ('lust'), Asto-vidad, and Vizarash, and the original, innumerable demons and fiends of Mazendara. 45. And his darkness and gloom, scorpions (kadzuno), porcupines, and vermin, poison and venom, and the mischief originally in the lowermost third of the sky, issue upwards, astute in evil, into the middle third, in which are the agreeable creatures which Ohrmazd created.

And the fiend of gloomy race, accustomed to destruction (aosh-ayin), changed into causes of death the position (gas) of the brilliant, supreme heaven of the pure, heavenly angels -- which he ordained through the power of Mitokht ('falsehood') -- and the triumph of the glory of the world's creatures, as ordained through two decrees (ziko): one, the destruction of the living by the power of death; and one causing the manacling of souls by a course of wickedness. 51. And he made as leaders therein that one astute in evil who is already named, and Asto-vidad who is explained as 'the disintegration of material beings;' he also entrusted the demon Bushasp ('lethargy') with the weakening of the breath, the demon Tap ('fever') with stupefying and disordering the understanding, and the demon Az ('greediness') with suggesting cravings and causing drinking before having the thirst of a dog. 52. Also the demon Zarman ('decrepitude') for injuring the body and abstracting the strength; the bad Vae's tearing away the life by stupefying the body; the demon Aeshm ('wrath') for occasioning trouble by contests, and causing an increase of slaughter; the noxious creatures of gloomy places for producing stinging and causing injury; the demon Zairich for poisoning eatables and producing causes of death; with Niyaz ('want') the stealthily-moving and dreading the light, the fearfulness of Nihiv ('terror') chilling the warmth, and many injurious powers and demons of the destroyers were made by him constant assistants of Asto-vidad in causing death.