Massive touring could be over. They'll do a few songs for sound tracks, and they may do some major market dates & festivals. But my gut is that once the Santana thing is over - if ever really happens - then they'll all begin to fade-out. Schon & Rolie will have come full-circle.
Somebody will fall ill, maybe even a death. Cain will do Nashville as a writer/producer. Schon will retire to the jazz & blues, possibly opening a few clubs. Valory will do his own thing in the Bay Area, or retire to Idaho (?) to fish on a river. Castronovo will continue to gig, possibly with a big name, and do clinics. And Pineda, he'll just go home.
Who knows...
later~