The MonsterInsider blog has posted concept art and some details of the Character Units from the Series 5 expansion for Monsterpocalypse.
From their website:
Monsterpocalypse: Big in Japan features one super-rare character unit for each of the six factions in the block. These character units all possess the Limited skill and a cost of 2. We’ll take a look at what each of these monstrous characters bring to the battlefield in their faction’s quest for supremacy.