RTF is a global modification that replaces all towns in the game.

Here is an example:

I'm not sure if this will work in the creation, but this city should fit the world of Ashan.

Attention, question!
Even if someone decides to port it to G5, what creatures will be there? Well, fairies, of course, but not all 7 levels of creatures and their upgrades.
It will be even more difficult to implement, because there is a square in the center, and buildings around the edges, so it will be necessary to base it on the dwarven Castle, so that the camera descends to the center and looks at the buildings from the center.
What will be the special racial ability?
If we are going to take cities from other games, then from the most similar games, that is, Disciples, WoW, Eador and others.
I think this is unnecessary.

Added 1 minute ago

Are the cities of Alfea, Red Fountain, and Cloud Tower possible to implement?

And are Red Fountain and Cloud Tower also from there?