That better not happen- RAW on the XBox was a steaming pile of crap. I wouldn't mind it being on the Cube if oter people like it, but most definitely NOT at the expensve of Wrestlemania, which I've grown quite fond of.
Somehow I think that rumor's false, though- why would THQ go through the trouble of revamping Wrestlemania to appease fans only to cut it off?