I'd say it's very likely that Capcom will go for it. Anyone can implement these drivers. While it may have been a good idea to partner up for merchandised sticks in 2009 when many gamers didn't have USB controllers, the FGC is pretty much loaded up with USB sticks these days, and asking people to buy them all over again for a port, a port geared for Evo at that, would be very dumb. These things are really expensive, and not many people will be happy about starting a collection.
And I'll stick my neck out by saying that Capcom will absolutely without a doubt integrate PS3 USB for SFV, it'd be suicide for the game if they didn't, although I'm sure you can expect the usual 'event' sticks for it as well. Capcom are opportunistic, sure, but they're not idiots.
they're opportunistic idiots
sometimes that lines up with what people want