If they threw Stealth Miss Martian at us, it would be a huge disappointment for me personally. I would not buy her. It would make about as much sense to me as seeing Teen Titans Go Aqualad show up instead of 60s Aqualad or Tempest. But I guess I'd be happy for you guys.
The white shirt & blue skirt Miss Martian is ideal. The usual female buck is a good place to start. She does need the skirt of course, some boots, and personally I feel the cape needs to be less snug than the YJ cape stile (my Batman shows how snug they liked their capes in that setting). I still think the comic version could be made back from the same time they made the two Superboys & Blue Beetle. It's my hope that they'd been working on modern Teen Titans (like Cassie Wondergirl as well).
Superboy can't compete with a duo partner needed to complete a duo. Superboy may (or may not) have much greater support if Cassie Wondergirl and Bart Allen Kid Flash were already made. And no, I don't think Kid Devil & Ravager were made (sigh).