Well 9 years since the game was being developed, but 8 years that it's been released to the public to play.
Update time lottery guess would be Wed and Thu 14-15 UTC Possibly August unless they move to 4 updates a year. However it is kinda pointless to guess as it will come when it's enough stable. T3D version release post, this was obviously after cryengine version, but it has been a while since this one too: http://www.garagegames.com/community/blog/view/22383/1
We probably would have had a teaser or two by now but not literal update trailers with the version number and even one with "insert devblog link here".
Summer vacations, would they release update during those or when full staff available? Maybe teasing to create interest during summer sale. Sure it would be nice to have update before August, but it would be quite exceptional, imo.