Reveal spoiler
January 15, 2019 - SMT development complete and live on the TestNet.
March 24, 2019 - SMT fully released and live on the Steem Blockchain
Source; @steemitblog
Finally the release dates for SMTs have been announced but it seems like a lifetime away. We just have to wait and hope they keep up.
@remind-me of this date. Let's watch if they can meet up.