What's the delay ?
I would prefer if it's not rushed. After the GLBSE fiasco, I'm not even sure listing on a centralized exchange is a good idea. With this in mind, I suspect that friedcat wouldn't relist all shares at once; making it opt-in might be the wisest choice, depending on the maintenance overhead.
As far as I remember, friedcat considered building a proprietary ASICMINER platform for listing and trading shares. As listing on all the alternitve centralized exchanges with their ponzis comes with risk, I think a proprietary platform is the best solution. We don't even know the exact reasons why glbse went down! Do you really want to ride the same horse again?