Oooo, interesting topic ~!
That's hard because Feral-Heart has already changed and it's still pretty soon to see what could be changed ( my lovely way of thinking ), Lol.
If I could change one thing about Feral-Heart, I guess it would be some of the models. ( Yes I'm aware that, that it could be changed now, but I'm talking about actually putting it into the game, implemented if we had the source code and the resources, Lol ). I think it would've been interesting to have more 'options' or even variety on how our characters would look. Ranging from the eyes to our tail and such. It would be neat to have two toned colour eyes, y'know, instead of making presets just to have them.
But all and all, I like Feral-Heart and how it looks even without all that fancy stoof, Lol.
If I could change FeralHeart, I would make it to where Legendary Items and Markings were a permanent fix in the game. Not a thing wrong with how it is now, but so many people just have issues with it. xD And another thing, make it to where all presets show up automatically. But that's just me. xD
A very interesting topic indeed
Honestly right now with the new update I wouldn't change a thing. I might wish to add a few minor things, but I am happy where the game is at currently. I might wish to add a few more den areas for role-plays, and would enjoy a nice snowy forest map for me to chill out in. I enjoy the sight of snow, and love just being around it.