I Remember that KP have announced that they intend to release a 1/72 AVRO 504.
Following their practice of using Czech manufacturers old resin kits for the moulds, this can only mean HR Model's 504 kits.
This opens some more exciting opportunities...
A few of them: Fokker D.II & D.III, Hansa Brandenburg C.I, Morane Saulnier N, Nieuport 12, Pfalz E.V.