Messi is not like Cristiano, he is more like a footballer than an athlete. He can create so, he can still play untill his 35 without scoring so many goals, but giving assists.
Also, his age is perfect for the next WC.
Atletico needs a better LB. There's no problem with GK or CF change. Moya and Mandzu are good enough to replace Courtois & Costa.
Moya with these apperances seems like a decent option and there is also Oblak!
But their limit is 3rd place, i guess.