I think Counterparty and Mastercoin should sit down together and talk about some sort of future together. It's two different developments of the same technology and both are going to face the same problem in the future: the hardcore bitcoin folks. I don't put it past the core devs, or pool owners to eventually block bitcoin 2.0 technologies. It would only make sense to start talking now about some sort of permanent fix. Perhaps a bitcoin 2.0 merge mined chain (or why not use Namecoin anyway?). It would even perhaps give a chance to build a sidechain that was faster, so we aren't waiting for several blocks to confirm for something to update on our bitcoin2.0 wallets.