You are correct that Steemit.com will be adding "communities" to its user interface. This should be happening with the next hard fork. At that time, SMTs (tokens for these communities) will also be added.
At that time, I plan to track important information about those communities and tokens. At present, SteemTribes.online only lists information about tribes/communities that were created by Steem-Engine SCOT.
So in the future, I hope to have information on Steem communities that were initiated/created from either.
RE: Steem Tribes Introduction