I seriously don't understand the 'urgency'... IMO the longer the fans are kept fiending for Edge V Christian the better.... If they kept them apart in the draft all year and eventusally have some kind of cross-brand clash at WM26 (or e-e-e-v-e-n 27 at a push), for example, that would be epic!
IMO WWE have shown over the last year or two that, if anything, they have a tendency to blow their load too early (rather than missing the boat on obvious money fueds.)...
I can see your point, but I don't think Christian is over enough to wait around. Obviously the guy is popular, but he's not so popular that the WWE can afford to put off the one feud that is guranteed to give him a big push. We'll see what happens after MITB but I reckon he needs to be put into a feud with Edge soon unless the WWE want him to stagnate.