I think Roland will do well with the XV88 because there are many pianists out there who crave a nice action weighted keyboard.
However, it's important to stress that it doesn't feel right to play certain sounds from a weighted keyboard. I come origionally from an organ background and let me just say that I HATE playing organ sounds from a weighted action keyboard. The same goes for playing piano sounds on an unweighted action- I HATE IT!
I hope the XV88 will have good midi controller capabilites (able to control several zones at once etc). I like the action of Roland weighted keyboards so I am keen to check it out. But the $5,495.00 (Australian) price tag and the fact that I just splurged on a (beautiful!) Korg Triton, wont have me pulling out the cheque book in the near future.