For me keep the aspect ratio, and just trim down the epilogue and remove mentions of Bruce’s dreams.
Ah, finally a fellow 4:3 defender! These changes would definitely be my top priorities and for a conservative fanedit (that would please even hardcore fans) those would probably suffice.
Throw me into this camp, too. In most cases I’d prefer my bars on the top, but it worked for JL and BVS. It feels as though the films were meant to be shown that way, and the picture looks more exciting and fixes Snyders problem of shooting so close in many cases. I thought the JL we got in full-screen looked awful, and the aspect ratio was part of the visual improvement