Be a shame if he had to quit 250's after all the time and work he's put in on proper race bikes, just as the results are really starting to come. Bet it wouldn't be the case if he was Italian or Spanish!
Please let someone give him the factory 250 he deserves.
It seems he's holding out for a full factory bike from his current Aprilia Germany team. My bet he stays in 250s. Yes, he is still very young, but any move away from the GP paddock is risky.