Real Madrid will have no plans with the German international when he finally run out of his contract with them because he's aged and gave rendered good services and purposes for the club. It would be great to watch Luka Modric and Toni Kroos hanged their boots in Real Madrid jersey because it's an act of respect and becomes the club's legendary players. The change of plans have surprise everyone, though it might be consider a transfer rumour, Toni Kroos suddenly picks interests in continuing his career, this time he would push on rewriting a new story in completely new league. Choosing Manchester City is the best decision currently because they're the reigning champions and having one of the stellar performance in EPL.
Considering that Madrid have extended Kroos and Modric's contracts for this season only, I am quite sure that next season Madrid will no longer renew the contracts of these two veteran players. although in reality, Kroos can still be retained for at least one more season. But for Modric, he is getting older at 38 years old, even though I have never doubted his work ethic even though his performance has decreased as he gets older.
Modric is one of the most loyal players compared to other players, I have never doubted his performance and ethos, both with the club and the national team. that's why, if he ends this season. I hope that Madrid will give as much appreciation as possible and appreciate it. even though in reality, I am a Barcelona supporter.
IMO, if Madrid no longer uses his services next season, it is very likely that he will hang up his boots to end his career as a Madrid legend.
As for Toni Kroos, he is now 33 years old. he can still continue his career, at least with other clubs and teams. allso, considering that Madrid now has a young midfielder with potential. and at least, after getting guidance from two veteran players, these young midfielders are ready to move to the next level in their game.