I could even see the Riddler playing a part in that storyline too. Although it might not be the best idea having another Riddler/Two-face movie. People would think it was a Batman Forever remake.
But I wouldn't think it would be too far fetched to have Two-face come back in that manner. I mean they never flat out said he was dead. He could have just been knocked out and the memorial service never showed a coffin. I think a cover up story would be doable. They would just have to introduce someone in Arkham that Batman and Gordon trust. Dr. Harleen Quinzel perhaps?
I'm just saying with Heath gone, bringing back Two-face might be the way to go now. Maybe not as the main villian, but I certainly think it could be a good plot device to use.
But I also think Scarecrow needs a comeback as the most frightening thing ever
And I'm really sorry to hear about your cousin Sean. Getting burned to death has to be one of the worst ways to die. Being eaten alive by something (shark being the worst with the drowning factor added) would be another, especially if it didn't kill you immediately. But burning is just so slow. I mean even Anakin's burning in RotS was hard to watch, and I'm sure it was far from realistic.