i don’t know that nothing will. I don’t know that it won’t either. And that’s part of the fun.
But taken as a whole for what has happened up to that point it’s sort of like Empire Strikes Back. It is a film that builds to a… what at least appears to be status quo changing event. And that’s how emotional stakes work.
Sure it’s possible that the next film undermines it. We don’t know. We haven’t seen it yet.
It’s also worth noting that only like 5% of MCU fans are comic fans. We’ve known the infinity gauntlet saga for 20 years. The majority of viewers don’t.