I think it is not so much the "explanation", but more to really word it out - we only got an interpretation from Mace when he asked: "is the boy, the one, who will bring balance to the Force?"

so the idea to have "son of suns" and "balance of the Force" is a good start - both can be read in different ways, but are quite specific ...

in greek mythology there are many interesting prophecies, all in hindsight pointing to the outcome, only problem, they could have gone the other way too ;-)

I tend towards a dual-meaning text, not so much for a self-fullfilling prophecy (like the one Oedipus father got) - something along Kroesus, whom was foretold if he would cross the border, he will destroy an empire (infact, which was his own ...)

Fans of "300" will know the other famous warnings/counsels (eg: "protect Athens with wooden walls ...")

It doesn't really be an apocalyptic record - meaning an end of world, but as the translation says "revelation" or unshroud/veil (hm, Lucas tried bits here with "shroud of darkness" ...) - the "balance" can be the turning point, only who and what this "balance" really means should stay obscure.

Maybe, and here is one I see with great potential, we got so many clues already in place, only to be connected: the Gilgamesh mythos.

why? because it is about "immortality" - or the quest to find it ... and this is a part of OT and PT (in some extend).

so the prophecy could speak of mastering evil/death, becoming one with the Force (not sure if that balances anything) - it would appeal to both sides (Jedi & Sith), to find out if it was true ...