I think it could be a biplane as Arma Hobby has never made one before.
What they did do is polish aviation related subjects.
With the exception of the Wildcat and Ki-84 all kits are linked in some way to polish aviation, either aircraft produced in Poland, served in the polish air arm or flown by polish aircrew.
It might be:
-DFW C.V (more than 3000 produced for the imperial German air service - never made in injection molded form in 1/72)
-Halberstadt Cl.II (Ardpol kit is extremely hard to get)
-Hannover Cl.II /III (The Airfix kit is very old now)
-Nieuport 80E2 two seater (no kit I know of)
-A.E.G C.IV (Neglected German two seater)
-Albatros two seater types (B.II,C.X,C.XII)
-LVG C.V (only the Choroszy resin kit)
-Bartel BM-4 or BM-5
I hope it will be the DFW, AEG or the Halberstadt! All are desperately needed.