I still think this is just a ruse of some sort. Even if Inafune says something like this, who knows how much weight it actually has?
For instance, did Shinji Mikami, the head of the former Capcom Studio 4 (and one of the top dawgs in the company until it a few years back), have ANY say in what happened to RE4, as it got ported over to the PS2 (ESPECIALLY after Mikami explicitly said it wouldn't)? No, because, in the end, people like Kenzo Tsujimoto (the CEO of Capcom) hold the final say to what goes on for the company, and Tsujimoto's more interested in the wants and desires of the stock holders, first and foremost.
You can be the head of development in any respect, but the overall business model is still decided by the people who actually run the company. That's the bottomline for any business.
Frankly, all things considered, I would have been more concerned if Takeshi Horinouchi said that Rockman wasn't in Brawl. People often associate Inafune with Rockman, but ever since Rockman EXE 4, it's Horinouchi who's actually involved with Rockman on a day-to-day basis as the series producer. Don't believe me? Go check out this month's (January 2008) Nintendo Power. It's highly probable that they may have just went and contacted him instead, and Inafune would be let in on the loop some time later. Again, things like that happen.
And on that note...there was interesting quote from that same article, in that very magazine, that I thought was also worthy of interest.
Question 16: What are some ideas you had for Mega Man, but ended up totally rejecting?
Horinouchi: In honor of Mega Man's 20th anniversary, I had planned to do a game where all of the iterations of Mega Man could battle each other, but then I gave up on it. There just wasn't enough manpower on the Capcom development team to bring the game to fruition. At some point in the future, I'd still like to give it a shot.
- Nintendo Power, January 2008, pg. 62
Gee...that sounds an AWFUL lot like what would have been yet another type of Smash Bros. type game. Horinouchi's PR statement aside, I can only think of a few reasons why Capcom would shut down an idea such as that; at least two of them having to do with Brawl, whether Rockman would actually get in or not.