Good point! I'm hopeful he still has the same drive at that point to stay as busy as he has been for the last forty-odd years, and hope he does keep making music beyond Maiden. I remember back in the Balls to Picasso days he was asked if his career in metal ever fizzled, he thought he might become a folk singer.
It's possible more dates might be announced. Guess I've been going by the assumption around here that his solo touring would end in July, and there would be a couple months of downtime/rehearsals before the 2nd leg of Future Past.