My bet is that it will involve the Moon in some form as it's always played a important role in the world of Final Fantasy and now with Endwalker expansion literally taking us to the moon, I think. I got a feeling that it's most likely going to be broken in some form or another and we'll have to save the planet from whatever is going to destroy it. I'm imagining that the moon is going to "hatch" some great monster and we'll have to kill it before it destroys the whole planet which we probably will knowing how things usually go in the lore, though we'd fail to stop the hurling chunks of rock heading to the planet which thus causes another great calamity on the planet thus allowing for them to do another 1.0 to 2.0 deal which we kinda need since the engine of this product was admittedly being pushed to it's limits with all the high numbers and such. which I got no issue with but i'm kinda use to that since i've already lived through one such event in this game though this time i'd know not to delete my account once it happens.