So far we have 2 possibilities in the air and 1 confirmed denial. B1 explored DEX, but would be a legal nightmare thus confirming no DEX.
One is wallet which would be interesting to see what technology they would have to compete against the Samsung Enjin wallet with Knox security.
The other heavily speculated release is MEOS aka STEEM 2.0 aka Decentralized Facebook. In his recent discussions he mentions that lessons learned from BTS and STEEM combined to teach him what he needs to know for MEOS.
Meanwhile, Referendum still gets little voter participation still. REX v2 is out, yet no REX. Just gotta vote for them.