I really liked the way they handled
I also thought they had a very creative way of bringing Lex back without using Michael Rosenbaum. I'm surprised they went as far to say that the remains were positively identified. Are they really considering Lex dead and gone? It would be a major step creatively if they did, but this show has such a problem with not going back to status quo that I have a hard time accepting that this is truly the last we've seen of Lex Luthor.