WGP is dead, all the K2 brands (JT, WGP, Viewloader, etc) were sold to KEE which is basically NPS under a new name. They don't use the WGP name at all anymore, so the Resurrection is sold under the Empire brand, which is their high-end line (I think, do they use Invert at all anymore?)
I don't think we'll see any other cockers from them though as this was Simon's project that he pushed through, and from talking to people at PBE the sales don't seem to be outstanding. The sniper version though we can't even keep in stock lol.
Plenty of small shops making new bodies, or old places like P&P, Shocktech, and TCP Xtreme making new bodies though.