[quote name='Dr Mario Kart']No wavedashing, no L-canceling, no jump canceled grabs and so on and so forth.[/QUOTE]
As far as I've read, L-canceling is in ... it's just automatic, now (as attested by your next paragraph about aerial attacks + landing lag). Wavedashing as a construct of aerial dodging is out, but the ground slide physics would seem to indicate to me that some of the faster characters might be able to replicate it in some form.