I'm not saying we won't see direct references to some of the tertiary Universal Monster properties, but let's not pretend The Mole People are going to be getting a full attraction. That could change if a remake actually happens and becomes a runaway success, of course, but there's some uncomfortable baggage associated with the original film that would need to be reworked/amended.
The most obvious choice is Creature, who is pretty inarguably the most popular Monster alongside Frankenstein, the Bride, Dracula, Wolfman, and the Mummy. How they incorporate that aesthetic into the existing execution of the Dark Universe, I'm not sure, but I'd love to see them give it a go.