Look, we all love Steve, but it can be infuriating as a fan to hear the tired old, "at the right time," response. Look at the clock, man. Nicko's gone. You're all in your seventies or creeping up on them. Tomorrow isn't guaranteed for anyone even a day old, let alone guys who've led long and incredibly creative and inspiring lives.
When viewed through that lens--which I have to believe Steve has most certainly considered--it's that further albums aren't important to him anymore. He's admitted writing and recording is more difficult these days. Live is what is important, and I'm trying to accept that if we do get a new album, it'll probably be because Bruce strong-arms him into it.
I hope if it does he can get into the swing of it, but I wouldn't be surprised if there are notably fewer Harris solo credits. Which is fine. I've said it before, if he's not up to it to the same degree, let Bruce, Adrian, and Janick take the wheel for one last spin.