This comment appears to contradict your earlier statement. Right now, most exchanges seem to be going with “BTC” is the old chain, and “B2X” is the new chain, unless maybe “BTC” dies out or disappears… in which case “B2X” will be relabeled.

This seems to be the most sensible approach. Allowing traders to buy/sell both is “nice to have”, but not essential.

What is essential is clarity … right now it’s only 2 weeks before the event and I still don’t really know if I will have access to both, what they will be called, whether I will be able to trade one or both on GDAX, etc.

This is essentially the same as a “stock split”. Just treat it like that and stop making a huge fuss out of it!