I sure don't hope they do this. Personally I felt the pain of 14 years absence from PS, and at the same time back in the day I didn't have the money (was young) to invest in 2 consoles.
I would not want to see that happen to my xboxer buddies in similar situations as I was in back then.
It is also a bit silly, considering the systems are more similar than ever, making ports easier compared to earlier. Sure, I can understand the viewpoint of not wanting to get slapped around when it comes to DLC by MS, but potential newcomers to the series and what not would be lost for the long run as well.
What would perhaps be best is even to get the game onto Steam like so many fighters before (especially considering you can just hook up the PS4 controller and play (with the "trick it into an xbox-controller"-app, lol)), where the DLC option and support is quite good and way out of MS reach (where there are plenty of other shops to use as well, should the need arise).
Personally I would want to see it on the PC for more reasons than that too, as the kids are starting to take over the living room, and the office and PC are starting more and more to become us seasoned gamers new arena. (Man, do I feel banished now)