All things considered, I don't think current Capcom is that bad. They could speed their shit up, have less PR mistakes, and not rush shit out the door, but they seem to be amending a lot of previous problems with SF and their other games. Many other companies have skated by with worse. Hell, I think they'd do a new fighter justice, because SFV was good at its core and MVCI seems to keep the same sort of crazy mentality the games are suppose to have.
But, ah, you gotta have cash to market this stuff, develop it, and release it. I shouldn't say it's impossible, but it certainly would take much more effort than most other fighting games would on its own.
Even without the sim aspects, I do think another RS game would sell more than DS though. The latter wasn't that popular outside of Japan. RS would have to be SUPER campy and slightly modernized in a few areas to make it work worldwide. And there'd need be a decent drought of fighting games.
I don't think it would require more effort when it comes to marketing, as I believe the premise has added appeal that more vanilla fighting games don't have. Just the uniqueness of the IP already makes it stand out IMO.
Whether or not Capcom thinks it's worth the investment, I have no idea. If they value what Itsuno has to say about it, they should, but companies often don't act on the wishes of their creative talent. All I know is that I see the potential in it, and I believe Itsuno when he says that he has concept for RS3 ready to go, and I hope he gets to act on it.
We already had Sakura cross over, I don't think it would hurt to have a few Rival Schools characters (or just Akira) cross over into SFV.
I don't think it would hurt if it was an isolated instance or one or two characters. My fear is that once you open that gate, then there's no shutting it, and the focus would shift off of RS having it's own share of the market, and instead becoming the third IP to be folded into the Street Fighter universe.
Street Fighter already has a huge roster, and that roster is only getting bigger and bigger. There's already so many pure SF characters that aren't getting enough attention. Add to that the cast of Final Fight, which many people advocate for more inclusion in SF, myself included. And if they ever get around to it, the cast of Saturday Night Slam Masters is also canonically eligible for inclusion.
If Rival Schools is added to this group, an already crowded fight for roster space gets even tighter. And we all know that only a small handful of RS characters would even be on the table for a SF to begin with, so most of the cast will already be at a huge disadvantage.
I just don't want to see RS become a footnote to another series, when I think it's one of the most promising yet underutilized IPs Capcom has at it's disposal, and one that I think has potential to make a big splash with a properly handled revival.
