From Official Discord channel:

Werner Heisenberg (Vice-president / Operations manager) on 1st February 2019:

“Here is a short update on our progress:

We have now, with the exception of expanding the block format to contain the network statistics requested from the Phoenix storage layer, essentially completed all the work on the blockchain integration.  This has allowed us to test our software with edge-case scenarios on our development network.  This is in order to ensure that the verification process of LOCK/UNLOCK and PIN/UNPIN transactions is reliable before the testnet release.  Once this and the block format expansion is done, we’ll be able to announce our release date.” 

From Official Ryver chat:

Ralf S (Shift President and Lead Developer) on December 20th 2018:

“Still making progress on the backend every day.  But I admit it’s an awful lot of work.  We’ve received various request in DM to show something to the public.  But it’s mainly code work we’re doing now, no eye candy. 

But I guess I can share a bit of what we’re working on right now.  I will paste some screens in our Discord channel.