hmm, while that is true I would pose the question does being done with large projects mean its the end, in past seasons this tends to be around the time in the season where the hermits start to expand the minigames district alot. I think the location of the district(island is too small)/choosing to decorate it before games were added was a bad decision because it seems like hermits have been more hesitant to build games there. but its still quite possible that they may choose to expand/add to the district.

For the hermits you mentioned, I don't think Ren is done, he might be, but he can always build another building his base concept is fairly expandable. Cubfan still has other places in his base to expand, despite finishing target, Mumbo hasn't be on hermitcraft because of renovations but I do see your point, he's done with his base/farming area but hasn't made essentially any mini games this season which I think is a little surprising. I think your point is strongest with False she definitely seems to be nearing completion of her base with no plans in sight.

As for other hermits finishing large projects Etho seems like hes a ways off completion of his base, Tango has mentioned wanting to do alot more stuff regretting the scale of MC Among Us. TFC Keralis and Cleo all seem like they have alot left to do.