I agree with Ioannis statement.
I have worked as a software engineer and I wouldn't even dream of telling something to our clients that its not 100% solid and coming in the next release.
The more details you give the more potential you have for conflict and disappointment, for now I think they should cook and get the new team acclimated. After that form a plan and release a vague roadmap that gives them wiggle room to change course if needed.
Now that does not mean that you cant have frequent updates , for example Anton Hand the main dev of the game Hot Dogs, Horseshoes & Hand Grenades does a weekly dev blog informing how the game is going. In my opinion he has done a wonderful job informing the players, but for sure it has given him some headaches .
Whatever approach the team of HexOs decides to go for Im looking forward to future updates
Peace!