The reason behind CR7 rumours are because of Madrid timing to go after Bale. When Madrid wanted CR7/Kaka they went after them early in the transfer window, because they knew before hand that they wanted them, Bale however has only become of a real interest this past week unusually late in the window for a signing of his price. It does seem very likely that Madrid know that CR7 is not signing a new contract and therefore want to sign Bale, however that does't mean they'll let him leave this or even next season, and CR7 already felt he achieved everything he wanted to here so he could be looking to play elsewhere.