Can Unionism adapt to change?

I am not sure where this character has found his figures (particularly the one estimating that 59% of NI Catholics are prepared to vote to stay within the Union); but it's probably a fair indication of the way some in the British Conservative party are thinking on NI in the wake of the Census results:

"The census will have a positive effect in soothing unionist fears. It will also prompt republican soul-searching. But it does mean that Northern Ireland will continue to be different from what it was in the past. It kills off old sectarian unionism because that’s simply no longer capable of defending a union where the religions are broadly balanced. But can unionism adapt to change?"

Found via Conservative Commentary.