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?
At least two of the exchange options have provide clear reports of shareholders to the asset issuers so something like GLBSE is not possible. (btct.co, and bit funder)