They posted the ETA in the other thread
viewforum.php?f=15and
viewtopic.php?f=15&t=3783You need to make some searches to find it, yes...
but yes a small box in the header would be nice with :
Next version : 3.1
ETA : End of July 2015
Progress : 80%
Another thing : you already have in the Account Manager a progression in the description . (currently 100% for the 3.0)