Would be sad to see him go
Sure it would be sad, as he is a legend and all, but I see a chance of him leaving. The squad is packed with quality and its hard to find players, who could make space for new fresh blood. There is of course Pizarro and then? You could say Dante sucks time to get rid..maybe Weiser wont get a new contract, but the rest? All class and deserve a place in that team in theory. Not forgetting Rummenigge mentioning, that maybe unpopular decisions must be made in order to make progress.
Schweini is often injured and is one of the top earners with 10m€. He is not the ideal player for Guardiola, as he is not mobile and offensive enough for the offensive part of the midfield so he is only suited to play the defensive part as a 6. Alonso can play there, Lahm and Martinez too..maybe new top talent Kimmich can play that role also.
There is also the possiblity, that Schweini is interested to try something new, before fading even more at Bayern and losing reputation. Then he has just one year left on his contract, so why not catching some millions before getting nothing in 2016?
I would prefer Alonso leaving instead of him and getting a new CM instead, but Alonso just came as short term solution until 2016 and I cant see Pep getting rid off him sooner.