I do not see anything in the ANN about being listed on an exchange. I also saw on the website that it's not actively being done yet.
Merit Market looks cool, but I'm actually not holding much BTC right now. Would rather trade in ETH.
Also, would be nice to trade it on an exchange I already use.
The Merit team has conceptually explained how they would approach external exchanges, and I can only assume they have technical work in progress. but yes- not actively being done yet.
The market is slick, but you're right BTC only right now. Some day they will add ETH and other alt options + Fiat.
If you are wanting over the counter options you can join the discord and find traders in the #trading channel.
Hope that helps!