I love the variation system, it brings more variety to the movelist, adding many new specials that we never saw before in the franchise. But then again I feel like 3 variations is something easy to saturate, I mean, MKX2/MKXI, considering there'll be many returning kharacters from MKX, I think it's pretty hard to come up with 3 brand new variations, unless there's 1 returning and 2 new, still kinda difficult to develop, and could turn into quite a badly executed system, creatively speaking.
So maybe 2 variations per kharacter next time is a better choice, but I like the system nonetheless and would accept it's return in any form.