As much as i would love to play an ancient elf, i don't think there is a place for an ultra-powerful mega being in contemporary Thedas. I mean, that would make more sense going against Solas if you were an old friend or enemy, but it's a bit of a giant leap of logic. Plus, such a powerful character with an important plot would likely have to be the only main PC, and there are people who do not play elves. For a variety of reasons.
I'm still on the Inquisitor for PC band wagon.
But a game where i could play the downfall of the elves, choose to be Solas' friend or enemy and see how the Thedas i know and love was made? Yes please, I would play that. Actually, that sounds like a fascinating game for the Lore fans and i would like to have it haha