I am very curious if WA's been eyeing Siocast for products. For those who don't know Siocast is a new-ish way to make 'plastic' minis. An example would be some of the new Reaper Bones USA models.
The benefits is that it seems in general it is not as complicated to engineer vs plastic injection, they claim you just need some good 3D prints to make a mold. Given WA's huge lineup of STLs, this may be a way to provide a lot of the WA catalog without the risks and cleanup of resin. Especially if you need to make like +5000 of something.
Of course the downside is that it is still very expensive. Not as much as plastic injection, but still large enough that it requires several thousands to invest in. And it is a proprietary technology by a 3rd party.
But lets be realistic here, very few companies can rely soley on plastic sales. Other than the 40g gorilla, I can really only think of 2 miniature companies who only sell plastic kits (not counting traditional model kit makers like Bandai or Tamiya). That being Victrix and (kind of strangley) Wyrd. Almost everyone else supplements their lines with metal/resin (and now potentially siocast).