I know that I can get the sprites of enemies and items in game but is there a place where I can get the sprites of the maps (Minimap layout & actual map assets)?
On Haizor there’s the Nexus Chars and Objects of various Nexus variants. Not full maps, but just the objects in the Nexus: https://www.haizor.net/rotmg/assets/production/sheets/ (Ctrl + F and look for Nexus)
On this RealmEye page there’s some entire maps:
https://www.realmeye.com/wiki/nexus (Scroll all the way to the bottom for Previous Nexus Layouts)
The page is a little outdated, keep that in mind. The current Nexus is not on there at least.
Thanks so much Fincy!