I change my mind about characters so often that I start wanting to apologize for it. I’m always rearranging things. Sometimes those changes make a character less appealing to someone who previously enjoyed it.
And that’s okay.
I mean yeah, it’s a bummer if changes make a character less widely liked but the character will find a new audience to appeal to and if that’s the change that you, the writer, want to make, it’s your call. It’s YOUR baby. You do what you want with it.
It’s good to be conscious of what your following wants, but it’s not fair to you to be controlled by it.