Hopefully the Mercatox listing does come soon, the EGEM team has been contacting Mercatox about it.

With regards to the development of Sapphire/DEX, it looks like the team is still undergoing testing to find possible issues to ensure that it will work smoothly before release. Which is great to see because it'd be better to have a product that is working properly from the very beginning. It's really informative to see all the progress and detail released by the devs about Sapphire on the EGEM discord .