Only latest info was a social media post about 3 or 4 weeks ago showing him back in training. Potentially only individual training though, rather than group work.
Yeah could be any number of reasons why he's not in training at the moment. Like you say if they're not going to use him for the final few games then why not send him on his summer holidays now, so he can rest & come back for pre-season raring to go. In most cases you want the recovery process...