I wish they'd do a new variant. I have all of the Bandai re-releases from a couple decades back. Maybe a TV Max & Kakizaki combo set. Also, they could re-release the armored 1J.
The retro packaging has been done a bunch of times now.
They should try some chunky scale and style Zentradi stuff. Imagine a solid, heavy duty, ratchet joint Glaug or Q-Rau. Those would be a huge success.