Will they ever get to Italian or Polish vehicles? Probably not. I will simply keep with my resin. Will they ever get to plastic French? Probably not. If I ever start collecting French (1940) it will likely be resin (I think Warlord have one plastic kit for early French). I can deal with that.
You didn't mention Mad Bob Miniatures, if you haven't come across them yet, they do very nice resin French in spades! Well, provide your own spade decals... ^,^
The new T-26 almost has me tempted to do Russian, but I'm really holding out for Western Front and/or North Africa. Vickers Mk VI variants would supply the early Commonwealth in cute light tanks!