I would miss my favorites if they were gone, but would love to have some new ones come in. I loved the episodes when there were guest stars like the Oktober Guard. It would be hard to have such a pro-military, pro-gun, pro-American cartoon do well right now. Yet, that is what I love and would want to see. It would be nice to see the team working with other special forces from around the world on adventures of some sort, battling Cobra, Red Shadows and others. Different partnerships each week, maybe not every week, but most. Fighting different villains, some old some new. GI Joe is and was pretty diverse with it's characters races, but more would help it be more mainstream.
Imagine if we got to see special forces from Germany, Israel, Australia, Brazil, China, India, Egypt, Saudia Arabia, and wherever. It would inspire more figures and at least customs.