Highly improbable: none of the PW devs are Polish (or whatever it is); it's only a mod using the warband engine, not released by taleworlds; from what I've heard it's more difficult to mod than warband; and there are other reasons. I personally don't like guns in M&B, as the melee combat is the main strength of the engine - if you want to make a shooter, there are much better engines for it out there.