It never was a comeback really, its just that seemed to be the word you were using. Oh yeah, if you werent already aware he's booked the gigs as a farewell to his fans and at least as of right now there are no more scheduled. I think, health providing there will be more though. I doubt he would just want to do a run in England and go nowhere else.
At least I can understand your point now though if you were under the impression this was the start of something rather than the end of something.