Another problem we have to consider:
If SE is doing it like in older FF games with breaking the lvl cap (a Quest or event or somethng like this) then what will players do who reached level 50 before finishing mainstory up to 2.5? Does that mean they will be stuck at 50 not gaining any xp (prefarming for level 60) untill they finally activated it through the new quest or event? I mean: Everything they do untill then does not give them any xp points and they have to start from scratch when they finally got past 2.5 storyline (50 to 60)...

I wonder how SE designed it