For those who don't want to wait, note that you can find a four-pack of online multiplayer competition-grade 3v3 and 5v5 maps here:

https://www.wincustomize.com/skins.aspx?skinid=188&libid=70

(Sorry, couldn't help but spam an ad in a thread that probably shouldn't exist.  Adambarnhart, come back and post AFTER you've released the maps and after they're available for downloading somewhere.  It's not as though you're a Sins mapping rockstar and that people are eagerly anticipating your latest releases.)

If you'd come play Sins in online multiplayer you could try to pimp your maps there and host games on your map, encouraging folks to download and install your map so they can play it.