Doubt it.
There is nothing to doubt. There is time to pull out, and that's a fact.
I also think that Roger's manchild nature is probably keeping him from listening to good legal counsel on this. If Bitcoin.com really ignores the legacy chain, changes the "BTC" ticker to an altcoin, and pawns these off on buyers / wallet users, Roger is in for a world of hurt when the lawsuits start rolling in. Bitcoin.com is brokering the exchange of goods and as a custodian, there are certain duties of care that must be taken from a legal perspective.
His fall would be very beneficial to Bitcoin, just FYI. Without someone like him, we wouldn't even be here. He's stupid enough to realize that agencies such as NSA have infiltrated both sides (especially his) and are manipulating him, as his technical knowledge is very shallow.
Bixin's policy towards Bitcoin Cash suggests that they are not a Bitmain proxy. But I suppose that could be a red herring.
It's hard to tell at this time, but I am slightly convinced that they are not.