I still want Onslaught from X-men. I even suggested to DTS that they put it out as a Red Skull version from AXIS and then hide a classic helmet alternate head in the package.

Outside of that I am not sure who I want other than characters that fit with my Marvel Legends.
Maybe classic Infinity Gauntlet era Drax with a Pip the Troll

Netflix's Daredevil (final costume from last episode) would be great, w/ a rooftop display base.