Thanks Rip Van Winkle.
There is no other source yet but KP usually stand by their word, except for the AVRO 504 that was announced and is not ready (yet?).
I don't know what 'metal molds' implies but if they are not replicating the Eastern Express (ex-Toko) Ni.11 and Ni.16 kits, the only other option, given their habit of using other manufacturers' old molds as a basis, is the old HR Model kits.
This is great news, as HR had a large selection of WW.I kits. Imagine 1/72 injection kits of the Fokker D.II and D.III, Nieuport 12, Halberstadt D.V and many more
The AGO C.IV and H.B. W.12 are probably based on the old CMR kits.