...Orrrrrrrrrr, they could make a new game. lol
Last Round was the "slight graphical update".
.............Ooooooooooook, but DOA6 isn't coming anytime soon, I wonder how many times we'll have to say it? DOA5 is fine in it's current state, I rather not rush things as I'm having too much fun with this iteration to fathom moving forward all of a sudden. And that wasn't a graphical update, they just added new skin shaders and various effect enhancements, everything else is the same as its always been. They're focused on other collaboration projects to gain notoriety and to forge credibility with other companies, and they're making Nioh, so I doubt DOA6 is exactly on their priority list. As long as DLC and DLC characters are selling well in Japan, then that's how it's going to go.
They would probably charge for such a thing and add in some new costumes and call it a rerelease.
And I would probably buy it...
Or probably just say it's PS4 pro exclusive. If they included ass physics and all that for it I'd actually buy it no problem. Plus as I mentioned back a few times, they can still add hairstyles, eyewear, and anything else they want as additional DLC. I hope they take a leaf out of SK's DLC book and follow some of their practices.