Well, for me, the problem WOPC had was it was the World of PokeCommunity. All of the regions share the same canon, and was limited to the cramped space that had little to grow. Being a WOPC regular myself, I know how hard it was to think of mechanics that were something different but still fit in this world that we are trying to create. It was generally too closed off and most of us just didnt bother to do anything because we found it somewhat hard to connect it since we all wanted to try different things.
That's why I think The Multiverse (yes im calling WB that because no one seems to have any other name suggestions) would be different this time around because it is essentially, a multiverse. We are not confined to what and what we cannot create. Another plus to this is that it isn't Pokemon-specific, which makes the situation more liberating than WOPC.
I do agree that without direction, The Multiverse will suffer the same fate as WOPC, but now that we don't have constraints as WOPC had, and with the WOPC regulars leading the charge, I'm optimistic that this time around, things would be different for the better.