Wargaming is proposing buffs for some tier 10 meds and nerfs to others. Source here.
Yes, not only will they be nerfing the 430U, the 430 will also get a bit of a nerf hammering. Substantially less DPM (unclear if the reload is changed or if they fiddle with the alpha) and worse gun stats.
Not a word on the Chinese meds. Someone might need to remind Wargaming they are still in the game.