I will just go ahead and say a proper Savannah map.
There just isn't any good place for Lions except possibly Fluorite, but that is a long shot. At heart this game seem very aimed towards lions and wolves(Yes I know, you can make it canine and felines in general but that's beside my point). There's a very big and strong amount of Lions on Feralheart, and it has been so since day one, but there just hasn't been any good place for them to go even though this game's feline model is made to be one and the game adapted this lion image for itself.
Instead lions are very widely spread around Fluorite and possibly found as a lot of Lion King related roleplays on top of bonfire which is honestly far from how I'd want to see it. The lions should have a true home in the game and a decent sized Savannah with nice shrubbery land and tall grass. Feels like they've been a bit neglected even though lion characters built up a lot of the start population on the game. Of course a decent savannah map is not made over a night, but I'm sure most of you get my point.
Don't get me wrong though, I know I play on a lion 24/7, and I'm easily one more for felines, but seeing the general population of characters and what the game is or has been an actual Savannah would be one of the first things that would make sense to me.