I really think Abe, Tomba, Dart will make it in now. The developers of Abe say they want him in and when asked later if he would be put in the developer said "I can't talk about that right now." So possible negotiations. Tomba's developers want him in as well. And Dart's license was renewed a couple months back.
I thought an interesting level 3 for Abe. Since He uses mind control like a little sphere like Sir Dan's but the first person to get caught in it fires off whatever super they have stored. You might not be able to get many kills but it denies that player kills and takes away all their meter so there would be balance to it.
The most likely would be a chimera and another first party character like journey wanderer, king of all cosmos, our wander. But I'm holding out hope for some of the biggest third party characters (you know who they are). Oh and rayman too