All those screenshots are looking amazing! I'm not that surprised that the university is taking such great shape though. For a location that never appeared in the games, there's a ridiculous number of references to it in Pokémon lore spanning multiple sources. That and the fact that an area like that has a lot of scope for development. Since it's getting so big, it almost feels as though there should be a sidequest in there or something... I can't think of any ideas for that though :/
By the way, where did you eventually decide to put the university? Next to the Pokémon Centre or near the Gym? Also, has Mateo agreed to put it in the same place for Red++?
It's to the left of the Gym. I don't think Mateo plans to include it in Red++, but we'll see.
As for sidequests, I think the Hyper Test is sufficient. That and getting lots of background info from the bookshelves and NPCs.