"character-naming" has been merged into "naming".
"character" has been merged into "characters"
I can distinguish "character creation" (how does he look, behave, ...) from "character-development" (how does he react to the conflicts, change his attitudes, ...), but I can't when compared to "character".
You can use "character" for both, creation and development, and separating them does not sound like a feasible idea. You probably first create them, before they develop, but a separate consideration doesn't make sense.
Keep "character", kick the other.