Not for me, no.
that aside, you already can move things (maybe not everything? idk) around in the base ui (and resize some of it)
I don’t disagree that the base ui is awful. I hate it. but I don’t think that any base ui is going to be great, because you aren’t going to get a consensus on what makes a great ui.
I feel that blizz creating a simple (if awful) base ui and building in hooks for third party devs to make addons to customizie it - allowing us to tailor it to our specific likes/needs is the best possible solution.