Being the coder most likely to have to implement things, I'm actually optimistic that we can get the one-token, two chains thing; that is, by holding MAPX you get a vote on one and/or both chains.
Steem-engine has announced that they will work towards a Hive-Engine which should arrive in a month or two. At that time we can re-evaluate and decide whether or not to split the MAPX token into a steem and a hive version, or to end the hive-MAPX and distribute its equivalent.
It's a murky situation to be sure - a lot can go wrong. But, I am talking days before two-chain voting is working.