Yeah... not happening.
I don't have confidence in them doing it... unless they can get the GG developers to do it...
They're not going to be able to.
Xrd has extremely talented programmers and artists who invented new techniques that they named after one of their people (the lines were named Motomura lines) and bone scaling is a thing in Unreal 4, they like to think, because their dudes were able to make it work in UE3.
Xrd has a ton of work put into it to make it look the way it does, and I don't think SNK has been following stuff like the GDC talk Christopher Motomura made about the development of the Xrd style.
Here is a model by Christopher Motomura himself, done as something in his own free time - this model has nothing to do with Guilty Gear, it's his own personal thing.
The fact that they have ONE GUY talented enough to do this shit in his free time as a lead artist really helps Xrd.
Xrd was made with every single individual frame in mind. This meant that they move parts of the face and body around for every single frame to make it look more 2D. The more frames they have to do that with, the more work is on them.
The frame-by-frame 'correction' to make it look less 2D can be seen here:
Original 3d model:
A sketch of what that scene would look like in 2D.
Correcting the model to look more 2D.
You see, many of the Guilty Gear models had somewhere around 400-600 bones, and 170 of them were on the head, to move expressions around to 'look more 2D' from specific angles and so they could change things around based on a 'base model.'
Also, the stages were built so that buildings in the background would look weird from any other angle than straight on:
And even for specific scenes, character models would be tweaked to be seen from one very specific angle. For this pose, May is only meant to be seen from above, otherwise she would be freakishly elongated.
More info:
http://www.4gamer.net/games/216/G021678/20140714079/
Basically, in closing, I believe that Inti Creates simply doesn't have the talent, or even money, that the Xrd team has. They namedropped Xrd as an influence in their Kickstarter but they very obviously don't have the talent and manpower to do what Xrd did.