For what it’s worth…My vote would be to remove Catwoman from the final shot for the reasons mentioned above but also, to differentiate this edit from the original version. If you want that ending, watch that version.
When making fan edits, the plans are to make the best version of the film possible, per the editor’s perspective, when producing FanFixes. I don’t want to make changes just for the sake of being different. Every change, removal or addition needs to serve a purpose.