Agreed, Elegran.
Will he be back? I don't know. He wanted to be PM, but found that it was harder work than he'd expected. Now that he knows what's involved, and that he is expected to subsist on £120k (plus vast amounts of expenses) he might not bother. His politics don't seem to be rooted in belief, as his flip-flopping on Brexit showed, and he doesn't have unfinished business (eg his 'ready to go' solution to social care, or the diversion of the £350m a week from the EU to the NHS) to return to. He didn't bother with either in the first place, so it seems unlikely that he'll have a burning desire to finish what he started.