OK Folks, here is the latest in Glock model availability. Since everyone pretty much knows the reguar Gen3 lineup, I'm not going to cover that series.
Glock Gen3 RTF2;
Models: 17, 22, 19, & 23
Notes: Original RTF2's where made with Curved Serrations, however, the curved serrations were discontinued, and are only being made with straight now. No OD or "C" models available at this time.
Models 17 & 22
Notes: No OD or "C" models available at this time.
Nobody here knows when or if new models will come out, until they are released by Glock. Asking 100 times will just get you stupid and speculative answers.