Markus Schreiber/Associated Press
Right now it appears Thiago and probably Martinez are in Guardiola's long-term plans. Guardiola is apparently preparing for life without Schweinsteiger. And Toni Kroos appears to be headed toward an exit for a number of reasons.
In January, esteemed German journalist Raphael Honigstein tweeted that he expected Kroos to extend his contract at Bayern after March and that the player was aiming for money and political standing at the club that would put him in the region of pillars like Schweinsteiger, Arjen Robben and Philipp Lahm.
Bild reported in February that Kroos' wage was €4.5 million per year, much less than that of Schweinsteiger and Lahm (€10 million each) and Robben (€7 million) as well as newcomers Thiago Alcantara (€8 million) and Mario Gotze (€12 million). The German tabloid also confirmed Honigstein's assertion of Kroos' motives in February.
Since then, Bayern have extended Robben's contract at a reported €8 million per year and also given Thomas Mueller (who was on an €8 million wage) an extension for an undisclosed but presumably higher—considering that since signing his previous contract in 2012 he has moved into his prime—pay rate.
Kroos has thus far refused to extend his contract at Bayern, with Chelsea reportedly (via El Confidencial, h/t Bild) offering the player €8.5 million per year after tax. That came just over a week after Real Madrid were said, according to Bild (h/t Daily Mail), to be in advanced negotiations with Bayern and Kroos over a transfer.
Kroos by all accounts appears to be peeved by Bayern's refusal to recognize him, and considering recent extensions for Robben and Mueller at wages in the range he seeks, it appears an agreement between Kroos and Bayern is not very likely. He reportedly has some lucrative offers from top European clubs and, should Bayern not sell him this summer, will be free to leave on a Bosman transfer in 2015.
Should Kroos and Schweinsteiger leave, Bayern will have a vacancy in midfield. They lost rights to Emre Can with the player's move from Leverkusen to Liverpool, but one young prospect who looks to be on the rise is Pierre-Emile Hojbjerg.
In an interview with the club's official website, Karl-Heinz Rummenigge recently praised the 18-year-old, who he insisted will not be loaned next season and has the talent to play with the Bayern first team.
Should Hobjerg not be ready to take on such a high-profile role (he'll turn 20 in the opening days of the 2015-16 campaign), Bayern will likely seek out a new star signing in midfield. Such a move could occur even this summer, especially if Kroos and Schweinsteiger leave.