I want the max level to stay as low as possible for this reason.
I want it to stay at around 10-12 level max so that the sequel will be more enjoyable.
I think there will almost certainly be a sequal that uses the same game engine that will take players up to epic levels 20+.
I think this because Larian have sold over 2-3 million copies already just in EA and they have recently opened up 3 new studios around the world eg malaysia, spain ect......they are gearing up for the long haul they have 7 studios now in total
https://www.rockpapershotgun.com/baldurs-gate-3-developers-larian-snatch-up-a-seventh-studioThey wont kill the IP that quickly they will milk it.