I'm not aware of other new o-ring projects.
Past projects:
1. Longbow
2. Operation recall
3. Stike Force Alpha
4. Roboskull
And a new one is coming and won't be a Kickstarter is Delta 17.
There is also Legends of the Hidden Force that just finished a successful Kickstarter. These are all lines that have popped up in the last 18-24 months. I would say 6 different O-ring based lines (not counting whatever Hasbro is doing, or not doing) is a lot. Then of course you have Super7's ReAction line which isn't O-ring based, but collectors are using it to fill in their ranks for never before made characters, or as background troop building.
Oh and I forgot Hasbro is still, sort of, continuing O-ring with the Transformers Collaborative line. The next one is supposed to be Soundwave as the Thunder Machine with Zartan and Zarana.
And of course that doesn't include all the little operations out there that don't go the kickstarter route (Quickkicksdojo, Marauders Gun Runners, etc.)
To me that is a lot of options in a short amount of time. I guess it is a good thing I don't really collect too much O-ring right now because, as I said, I couldn't keep up. Hell I can't keep up with the regular retail stuff (6") being released right now.
