Principate
Saint Titanfall
Then it sounds like the main strength of why it became as popular as it did wasn't Pokemon. Maybe what you mean is that Pokemon as a brand is the main reason behind the potential it had. But it wasn't why that potential was tapped. Ignoring the fact that the Ingress formula as a large scale real world social experiment fit Pokemon so well is foolish.
If you mean not specifically Pokémon sure you could argue that if there was a appealing set of monsters/collectable things with massive appeal across a large age but that IP will be what sells it. Not that your collecting things in novel way. We wouldn't even be talking about ingress 2 with the same mechanics as Pokémon Go.
I'm not talking about this universally there are indeed extremely strong gameplay innovations that sell themselves but Pokémon Go is not an example of that.