Well, Morrissey is going to tour with or without an album, so that's pretty much a given anyway. There is certainly plenty more Morrissey could do, if he was willing. Back in the Sanctuary Records period Morrissey was everywhere, with heaps of TV and radio appearances , and so many print interviews I gave up trying to keep up with them in the end. He was out there flogging the albums constantly, and it definitely helped.
Obviously, these days he has such a toxic reputation he'd face an uphill struggle with the press, but I am sure they would all be desperate to do proper interviews, only these days he won't.