2X is the big one though. That could be far more damaging than BCH. Because of that I think we'll see more supporters chickening out near the time.
I imagine you're right. But for now, there remains a fairly unified front. Surprising, really.
I think we need to consider Bitmain's interests. Do they want to cause as much chaos as possible (kill the legacy chain, force its users to emergency hard fork) in a bid to promote Bitcoin Cash? Seems risky. But this seems to be the position that many BCH supporters are taking: support Segwit2x because it means that "Core loses control of the repo and will lose the block size debate." And I suspect that Bitmain has a lot more hash power at its disposal than we'd like to think.
I think we should probably assume that there will be more hashrate behind the Segwit2x chain at fork time. And the list of Segwit2x supporters (besides miners) has some heavy hitters. Major exchanges, payment processors, wallets, services, etc:
bitFlyer
BitPay
Blockchain
BTCC
Circle
Coinbase
Coins.ph
Digital Currency Group
Grayscale Investments
Purse
ShapeShift
Xapo
ANX
BTER
Jaxx
That's a scary list. And if both chains are viable, I think we can expect other exchanges (like Bitfinex) to start adding trading pairs for both forks. It'll be chaos.
It's not clear where BitGo stands. They were originally included as a signatory, but apparently that was erroneous. Mike Belshe (CEO) seems supportive, Ben Davenport (CTO) is clearly opposed. Cryptic exchange between the two
here:
I know it will eventually drop a bit, but for now it just keeps going up. 96+% support for segwit2x.
I assume you're aware f2pool dropped out, no?
I'm aware of more than you could imagine. Just reporting facts here tho.
Not sure how the market will react and which companies will get cold feet, but from the look of things right now, the Segwit2x backers are nothing to sneeze at. They can have a serious influence on the market.