Lex Luthor as the criminal in two films? No.

I like the idea of Luthor being a antagonist int he second, but not the main, just a little taste of him. Then in the 3rd he runs for president or something and we get a storyline similiar to the Justice League TV series.

Lex needs to be in all Superman movies, only as a behind the scenes manipulator and not as the main villain. He should in some way have some kind of scheme in MOS that establishes he is not such a good guy like the public thinks he is. Watch Superman TAS and you will see what is IMO the best portrayal of Lex Luthor.

I think the second movie should be Lex, who Superman already has a problem with due to the scheme in the first movie, enlisting the help of John Corbin to test the effects of kryptonite on Superman. Then after some bad accident, Lex turns Corbin into Metallo. A villain who would be perfect for the movies.

I hope they don't make these movies in trilogy format, because that limits the a lot possibilities.

1. no it should not be a trilogy
2. The sequal should be brainiac
3. save doomsday for the justice league movie

to elaborate lex luther is a weak human that no one ever believes was ever capable of beating superman. he makes for a crap villian. he needs alien tech to beat superman because human tech is just so wack in comparison so lex gonna have to wait untill he can get some alien tech ideas mixed with kryptonite.

ah i see i remeber one of the episodes is that the one where flash had to run around the world really fast to break the braniac armour and then almost got sucked into some portal?

brainiac and lex makes a lot of sense and i do believe they work well in the animated features. i cannot think of anymore villain that can compliment each other rather than the 2 aforementioned..and definitely luthor will be likely included in the sequel. he is an integral part of the franchise.