They can literally add all of this in 6 if they weren't lazy.
In fact, with the 1st year anniversary almost here, the game should've been almost capable of a redemption at this point if they actually wanted to make this game better. 1 whole year is enough time to release some good patches to fix things like ugly/buggy graphics (did they even fix the messed up alphas on the character's hair?), updates on the characters' gameplay (Dissidia NT, also made by Team Ninja, updates the characters' kits frequently during the whole year), stages (we're lacking variety and yet they only released ONE in an entire year when they could've given us at least 2 more for Halloween and Christmas, 2 of the most iconic holidays), actual WORTHY costume packs (just take a look at your fanbase for ONCE and realize how we want unique costumes back and not this copypaste bs)...
The patches themselves are also lackluster at best, and they hype us for nothing like the whole "2020 update!!!" fiasco lmao.
Sorry luv, but if I haven't spent any money on 6 it's because of how bad they're managing it and how UNINTERESTED I am on supporting such behavior, so I'm gonna spend even LESS on a new version for literally the same game. Especially because in this whole year I've had enough proof that they're just gonna keep doing things the same way they're doing them with 6 vanilla if they ever release a new version. Unless the team wakes tf up and gets some new people actually interested in making DOA good again.