Weird its the Ju-88 when its a Do-17 in the starter box, not entirely sure on the purpose of the Ju-52 either (models look nice though) unless they come with a custom escort mission of some sort (or such is planned) - An American (B-25 or B-26?) or Japanese bomber would have made more sense.
Indeed a medium bomber for all five factions would have been better, note quite sure on the role of the transports.
that said they look like proper multi-part models, hopefully in a proper hard styrene, and the details mention "decals" (hopefully not flipping stickers)
Think the base would have been better redesigned specifically for larger aircraft with a larger base and the forwards/backwards angle reduced to about half that of the fighters (I think they look ridiculous angled up or down)
Likely will be ordering via FLGS the Blenheim, Ju-88 & Ju-52 though