Shaqiri is still young. what is he 21? 22? hes playing for the CL winner, competing with Ribery, Robben, Muller for his spot and still managed to play 16 games in the BL (out of 28, and he was injured for a month) and 28 games in all competition. so, he doesent have little playing time at all (for a 22 year old who plays for the CL winner and has Ribery and Robben), next season he will play even more, hes winning trophies so i dont see a problem with him being unhappy. we also know that Rummenigge stated they want to keep him.
he may eventualy be loaned out to a BL team playing CL (to help both sides) for one year but thats it. he will stay a Bayern player for many years to come