Hey all, Counterfett here. I actually heard about this from Warpstone Flux, which is amusing to me, since I am part of Mantics newsletter, but never seem to get it (I think my spam filter is to blame, not Mantic, but still).
In any event, Mantic is having a big sale on some of its discontinued boxes. Not to worry, I already did the panicking for you...they are not discontinuing any models, all of the figures included are still available, they just come in different sets now.
If you dig some of Mantic's models (like I do) and you love a great deal (like I do), you owe it to yourself to go check out their Spring Clean Sale here.