There aren't many devs willing to put their passion into new CFWs these days, since most users will just use Luma anyway. I've also heard that some users have been rude to CFW devs mostly because of what they perceive as the inferiority of their project, although I haven't really seen this myself (save for one guy who insulted the Corbenik dev, but that was because he quit).. The Corbenik dev was working on Corbenik until a short time ago, until he got frustrated at some bugs and B9S compatibility and, of course, an existing lack of ongoing enthusiasm for working on Corbenik.
As far as I know, the only CFWs currently active are B9S and CrimsonMaple's ReiNand. There was some talk of forking Corbenik, but I've yet to see anything happen in that regard.