Kotaku's Brian Ashcraft just released a pretty interesting interview with Platinum Games' co-founder Asushi Inaba that's definitely worth reading in full. One part stuck out to me:
...implying that there is something to talk about? Is it happening, you guys?
Also, to keep from you from getting too hyped: Metal Gear Rising 2 will probably never be a thing:
AARON: Is there any possibility that Vanquish will get a PC version?
KOTAKU: It would be a good idea to release Vanquish on PC.
INABA: (smiling) Hrm. I wonder... If you stop recording, I can talk about that. (laughs)
...implying that there is something to talk about? Is it happening, you guys?
Also, to keep from you from getting too hyped: Metal Gear Rising 2 will probably never be a thing:
KOTAKU: So, within these past ten years, Platinum Games has made various titles. Is there interest in making sequels, such as making [Metal Gear] Rising 2?
INABA: Rising? That’s Konami’s IP.
KOTAKU: Right.
INABA: And Kojima Productions [at Konami] no longer exists.
KOTAKU: That’s correct.
INABA: We don’t even know what will happen next. That’s just looking at this from our point of view.