So instead of having a character generator included with the maker, we will have a tool external to RPG Maker Unite, which can be purchased separately (but is free with Unite), and which allows the converted images to be used in all RPG Maker programs (and maybe others too?). In compensation, we are proposed a new tool and a new creation process that will be discussed in this thread.
If we don't know much about it yet, one thing is certain, that the character generator we had in MV and MZ will disappear. As already discussed on this forum, RPG Maker Unite will be released (probably) in 2022.