There is no signer support to add.
This is really scary. How would I transfer my B2X without affecting my BTC? Apparently it's not enough to just fire up the B2X full node instead of Bitcoin Core - the BTC will still be affected.
This cannot end well. Lot of people are going to be losing some money big time... :S
What the hell Garzik...
I spoke too soon. Looks like Segwit2x is NO MORE! VICTORY (for now).