I'm a firm believer in he's made his bed now he can lie in it... Had he stayed here he'd be contributing 35 g/a by now and he'd have massively improved beyond anything we saw, to me he's shown only massive regression after stupidly making the wrong move joining the rags/dippers/gooners of Germany he's now 26 and 27 halfway through next season, he might be German but it doesn't mean you need to join Bayern once they show you any attention such a disappointment, he would've been absolutely world class it was extremely foolish of him to move to anyone at such a key time in his development especially following his injury.
As a player I loved watching him seeing him breeze past players and what he offered was very exciting, had he not been stupid and stayed here showed a willingness to improve then a move to Bayern right now would be completely impossible for him, as they couldn't possibly have matched his wage demands he would be on a whole other level financially, Bayern have their wage structure he'd never be going there had he stayed till now whether that'd mean staying here going Real or Barca others etc.
Not sure what to think I dunno I'd really love a player like him but to me he's already wasted too much time in stagnation to ever become the player that he should've when here, honestly I think he's blown it bigtime and wasted too much valuable time to reach the heights that he should've by now, doesn't mean I'm writing him off as a player but we've moved on to other players and I really can't see Pep who loved him taking him back you get no second chances with him, think it was the reason we didn't go back in for Messi like Sane he wasted Pep's time so he made other arrangements and was cold, if he does that to Messi then Leroy has zero chance whatsoever I don't see a route back here for Sane as Pep is ruthless, he's messed up bad I can see him ending up at Newcastle trying to resurrect his career and doing well at an ambitious attacking team should he leave but I think Juventus would be a bad move for him.