4Gamer: "What can you tell us about the next game to be developed? The most recent game - Mega Man 11 - was amazing, and we [4Gamer] are expecting the revival of the Star Force series. Personally I would like to see the Command Mission saga to be brought back. (laughs)"
Tsuchiya: "I see (laughs). There are a lot of titles I personally want to work on, but to tell the truth the next game to be developed has already been decided on, I'd just like to keep the specific details hidden for the moment. Please wait until we make an announcement. Still, I think that the there's no such thing as a spin-off in the Mega Man series, every saga is a main series on its own. When speaking of "Mega Man", there will always be people who think of "X", as well as people who think of "EXE", and I think that's why each one's concept of what Mega Man is changes depending on the generation. For that reason, we don't want to deny any series of its future."
Although Tsuchiya did not specify what game is in development, it's interesting to note that he recognizes fans have a very broad definition of who or what "Mega Man" is. He's coy about it, but this is Tsuchiya's way of saying that, really, nothing is off limits. I don't think it's a stretch to say that there may yet be new entries from not just Classic and X, but Battle Network, Zero, ZX, Legends and Star Force as well.
Might I also add, earlier in 4Gamer's interview, Tsuchiya also said Capcom are "planning on extending the Mega Man brand at least over 10 or 20 more years by giving it constant stimulation, that way we'll be able to experience new titles alongside new player." Needless to say, Mega Man's future is very bright. We're exciting to see what lies ahead!
Source: 4Gamer (thanks for the translation, Seita!)