I don't get it... Do you expect Larian to keep entertaining you for a whole year until the game comes out?
I mean, I'm all full of expectations out of BG3 and want it to succeed and all.
I do think, however, after all they do need to be mindful of million players that bought EA and feed content on regular monthly basis. I have no issue with this staying Act 1 only for a year or so until full release, but I certainly expect them to intro new companions (already 3 more supposedly datamined), new classes, new feats and so on and maybe half a year to 9 months in raise level cap in Act 1.
I certainly don't expect them to conjure a big content dump in 2 weeks from now, but I also don't expect them to leave things as they are without content drops for a year either.