Sorry for the late reply.

It seems that a group of users already decided to create a new chain, and there could be more to come.

I think the "dumping" issue exist both in the current Steem and the new one. For each, there are users who do not like it and they will sell. My guess is that token prices would go down everywhere, and it is likely that the sum of all steem-related tokens would be less than the current steem price.