In the past month, I've put in orders to Aviattic, Gaspatch, and Bob's Buckles. There's no reason you can't use aftermarket on other manufacturers' kits; I got decals and photoetch for Roden's Dr.1
As far as future releases of the WNW catalog, I'm hopeful. But there is a possibility that PJ may simply decide to put his toys back in the toy box. I know it defies conventional wisdom, but isn't that the way WNW always operated?