Oh, yes. A Riddler who is consumed with arrogance.
The Riddler always was, that was the whole point, he though he was smarter than everyone else, and that DESPITE handing out riddles before every crime no one would be as clever in solving them as he was in setting them.
A Riddler too stupid to solve a problem without relying on someone else.
The Riddler always cheated too.
A Riddler who is a dishonourable coward, never showing remorse for past mistakes and taking out bouts of insane rage on other people.
No one ever said the Riddler was a nice guy, he's still walking a very fragile line between sanity and madness, but he played the system and is now legally cleared.
A Riddler who, in point of fact, DOESN'T USE RIDDLES.
No, he SOLVES them now. Riddles are still his obsession, just from a different angle.