My first character would be Conan The Barbarian. I think that it is possible to add him as a roster hero now that he will be an Avenger and is again part of the Marvel Universe. The second character would be Ka- Zar.
I would like to see a new 2* not a limited edition. A grey hulk or another lesser known character
The biggest disappointment for me is only having the juggernaut be a 1* character. Making him into a 3* would be great! What about Mr. Sinister?? He could be used to boost other characters abilities!
Legion! Just in time for the final season. Such an interesting character with a wide range of potential powers.