Okay okay, let me untwist everyone's panties here:
1) DOAN has a habit of adding speculation from inference in his news posts. The article said nothing about being PS4 exclusive, it simply said it was being made for PS4 and made no mention of Xbox One.
2) Hayashi has always preferred the playstation and other platforms over the xbox. His status as game director began with TN's first PS exclusives and he's been continuing to show progressively more interest in PS than Xbox (which is one of the main 2 reasons I made the switch to PS over xbox, btw). I wouldn't be surprised if TN develops consoles primarily on PS and then tweaks/adjusts/ports them for other platform releases, such as xbox or WiiU.
3) It's hard to blame him on that last note. While ideally we want everything cross-platform, MS seems to be dicking around with TN a lot lately. They're bad getting their patches released, they denied them Core Fighters, PS is way bigger than Xbox in Japan (where they are), etc.
4) I seriously doubt this will be DOA6. It might be NG4, but even then, I wouldn't bank on it.
5) Whenever you guys talk about TN betraying their "original fan base" by not making things on xbox, that carries a lot of odd connotations. First, when TN started making games, there was no xbox. Second, TN made DOA2 on Dreamcast, then Playstation!, then they made DOA3 for xbox and stayed with xbox for a while. Third, it's not like TN's fanbase is stuck on xbox. I used to play their games on xbox, now I do so on PS. This game is being made for new gen consoles. It's very likely many 360 players will get a PS4 instead of an Xbox One. So really, TN is no more of an "xbox player" thing now than it is a "PS player" thing.
6) If it is indeed an exclusive, that is stupid. I don't think that will be the case however.