Many thanks for the inquiry. We have a large backlog, so we'll not be able to list coins which are not in top 100 (Coinmarketcap). Having said that we have developed a technology to make listings much easier in general, so it might be worth checking back soon, as Macro develops. A decision not to list is not a negative judgement about the project.

Our listing process is now available through github: https://github.com/macroexchange/macro-registry