Sure, you can watch
http://www.mthbuilt.com/releasenotes.html we update it with each release,
Our release cycles are short, we average 5 to 6 weeks per release and we plan on keeping it that way.
We can't commit to a certain date, Investments module is actually quite complicated; we might release some basic functionality first, for example equities, and then add synthetic securities later for example, we have not finalized the road map as of yet.