It's impossible not to agree with everyone's hypothesis because this ending is too confusing.
I think & i'm not sure of this but anyone out there that is wiilling to answer please do so.
If Squall died or not I'm not sure but could it be possibles that Squall is trap in time compression.
I know is not realistic but because the ending is confusing who knows?
please let me know.
2 things to think about.
If Squall died he would be next to Rayine when Laguna gives her the ring.
when Rinoa see a shooting star she points at it ?????????
everybody makes a wish when seeing a shooting star, maybe she is wishing Squall was there.