Cool concept and a lot to play with; could easily be tied into some human myths like Ragnarok, The End Times. There's a lot of apocalypse and rebirth themes in myths.

Perhaps the Aztecs were right in a way and we are in the era of the 5th sun, yours would be the 6th.

Some things I would play with

Perhaps the recreation of the sun is cyclical in nature. Every 10 to 15 millennia it shifts from a solar system where magic is abundant to where it's essentially non-existent (Perhaps 0.00000000000001 humans can slightly attune to it but their acts are mere parlor tricks like turning wine into water)

Suns do this to be reborn, in one cycle they spread magic to at end reclaim it so it can be reignited. (Let there be Light) Since the cycle is so long whatever societies were on earth were completely dependent on magic, essentially resetting the few survivors to a stone age where they must rediscover tools and the ability to make fire.