I think it is possible, however, it's all down to Mark's health, it's different with Phil Collins, he is the Genesis front man, so can gat away with not playing drums, but Mark is different, there is no point Mark just singing and not playing, I don't think he would ever even dream of doing that, so, we will just have to wait and see, is he the type of person to announce a "farewell tour" I am not sure, but I doubt it, the good news though is that if he doesn't tour again it frees him up to spend more time recording, and doing the occasional live performance. I will be happy with whatever he decides to do.