Yeah, honestly, for the anime to work it'd have to go with Hinowa ga Crush, but even that has some skewed parts considering how the anime ended differently than the manga.
If you mean anime, it's more like Tatsumi actively running away from Esdeath. He's probably with Mine lol.
I'd welcome one of my favorite characters coming back, honestly
Hmm...interesting. I think Merraid did play a large role in convincing Akame, but Akame had to have the time to use the evidence in correspondence with other claims and evidence before tying it all together, especially due to them torturing Natala.
He is just very young with his wide eyes and face. He is clearly male, though. I have to say, however, when I saw Run I thought he looked pretty feminine to me, especially at some certain times.