Pretty much all rumours are about De Bruyne possibly joining us next season, so Götze has another full season to show he's good enough to be a regular. If he doesn't improve, he's a bit of a problem for us anyway. He's one of the biggest earners at the club but only has two years left on his contract, so next summer it'll be one year left. So what are we supposed to do? Extend his contract doesn't make a lot of sense if he doesn't perform to deserve such high wages. And if he still struggles after 3 years, he should look for a different club to get his career back on track anyway. So we might have to sell him regardless of the De Bruyne situation.
But I can't see us giving De Bruyne a guarantee that we'll sign him next summer. That would be really odd, so nothing will happen from our side this year and we'll reevaluate the situation next summer when we know how Götze performed this season and who'll be the manager next season. If De Bruyne wants to move this summer, he'll end up at City.