Which Might and Magic universe are you referring to?

Actually, the old universe isn't called Enroth. Moreover, the population of many planets isn't made up of native inhabitants, but rather colonists. And finally, Ash and Urgash can be linked to the old universe, portrayed as cyborgs, similar to Sheltem, Korakh, and Escaton. Especially since Ash's design is inspired by older installments. This could also easily justify the cameo of Crag from the fifth and sixth games – he's quite the adventurer. So, it's possible to connect all of this if there's a desire to do so.