It seems that Iker Casillas could be facing his last couple of months in Real Madrid. According to Onda Cero, Real Madrid want to part ways with the captain although Casillas himself would be keen on staying in the Spanish capital until the very end of his contract.
NOTICIA #AlPrimerToque: El Madrid quiere llegar a un acuerdo con Iker Casillas para facilitar su salida del club el próximo verano— Al Primer Toque (@AlPrimerToque) April 27, 2015
According to that report, Real Madrid would try to find some kind of agreement with Casillas in order to afford his departure from the club. And there's more. If Casillas does leave, De Gea is the chosen one to replace him (something Managing Madrid has reported multiple times over the last few months).
NOTICIA #AlPrimerToque: Iker ha manifestado que se quiere quedar pero el club cree que es la mejor solución. Si sale, el elegido es DE GEA— Al Primer Toque (@AlPrimerToque) April 27, 2015
It will not be easy for Real Madrid, Manchester United, De Gea and Casillas to keep this as a secret, because this will be the year when Casillas leaves the club.