They need to move to focus away from Lex Luthor, I know that sounds insane seeing he is THE superman villian but audiences no longer relate to him like we comic fans do, the want to see Superman up against a brick like they did with Zod and his gang back in the day. Put him up against someone big.
No one is going to buy Lex running around in a suit of armor fighting one on one with Supes lol.