Some official words from Tynan posted here:
"We recently asked whether players would rather have the bugfix-only update released, or if they’d prefer we just kept working and waited until we had new content to release.
The results aligned with my personal thinking, which is that the disruptive effect of a release (breaking various compatibilities) isn’t worth it for a bugfix-only release. So, we’ve been adding new content! Alpha 17 will basically be two updates combined, where one of them was a refinement-and-fix overhaul.
I’m not going to go into detail on exactly what’s coming (that’s what the update videos are for!) But here are some basic notes on things in progress. The update will focus on enriching the content in the world, and create more reasons to use the planet-travel caravan system:
Based on man-hours, Alpha 17 will probably be the most substantial update yet. RimWorld has become quite a beast in terms of design complexity, so it does take a lot longer now to design and tune things so they integrate into the rest of the game well, don’t overwhelm players with complexity, and don’t create weird exploits or nonsensical outcomes. But, that’s all part of the inherent challenge of designing a tightly-integrated, wholly-procedural colony sim!"
At this exact moment there is no release date and the team is still chipping away at the update. You can join in the discussion here: https://ludeon.com/forums/index.php?topic=31683.0
In regards to "you guys aren't posting/communicating enough!"
Truth be told the dev team is actually at a point where the majority of their day is dedicated to working on the game itself. Communication is a bit sparse sure but if you ever want to get more info on the game or possibly find out what's going on you're going to have far more luck over at our forums. https://ludeon.com/forums