Carlos says he's looking forward to doing Santana V. He made it sound like the Santana IV writing and recording process was pretty painless and would like to make more music with those guys since they're all healthy and in a good place creatively.
Still no release date mentioned, but he says he's "just finishing" the Ronnie Isley CD. They tracked 16 songs in four days. It sounds like it's going to be all covers, including "Gypsy Woman" (which Carlos has already done as both a Santana song and as a guest appearance with George Clinton).
Full interview at the link.