Mario Maker was fun (especially the 3DS one with the not so hidden genuine Mario game), but there's only so many times I can stomach the wild back and forth between levels that require subframe timing and intricate knowledge of bugs, labyrinth levels with dead ends, "clever" solutions and short time limits... and auto playing music levels.
Plus, honestly, my own Mario Making skills are abysmal and my fragile ego can only take so many reminders of that fact. So, meh to that.
Besides, after I'm done with Dragon Quest Builders I'm probably all burned out on block based creative games for a long ass time.
Kinda hoping they will drag out an old or create a new franchise. They met great success with Splatoon, Labo looks like it might at least garner some modest interest, and taking a part of the Mario Kart team and having them make a boxing game turned out okay as well. Plus, the experiment of making Zelda a sandbox game with Ubisoft sprinkles worked wonders. So I think there's a tiny chance we might see some more experimentation.