10char right
so Eden is the 1st sin eater and apparently Minfilia stopped it when she came to the first. Though unlike every other sin eater Eden is not made of light but apparently is light which may mean that there is a equivalent within the void.

If that is true then we could have our way of fixing the void potentially and it seems Gaia is the oracle of darkness so she may be the key to it as well.

Refighting old primals with new skins is interesting but i have to say where on the source did we face anything that was close to Titan's power in a car XD i know these are just names at this point since Urianger states that our memories of other foes are fusing with the primal idea we know. So we probably have the next 4 bosses lined up as Garuda, Ifrit, Ramuh and Shiva. Wonder how Nomura will change their looks up

Tin foil hat time i suspect the last 4 bosses will have something to do with the void and us fixing it now i hope it will be like they have shown with Eden where certain spots will start to have life return and then slowly go outward from there, as this could leave voidsent as enemies for awhile but we also have to consider would the voidsent just eat all this new life up the moment it emerges? Could fixing the void actually be possible this way due to the nature of voidsent or would something akin to the flood of light be needed where if voidsent so much as touch it they transform back?