What If...Marv Wolfman and George Perez Could NOT Create NEW Teen Titans?
I had created this list before as @airdave817.
So, Titans is being developed for DC's Digital Service. There's been no official launch date as yet, but it is expected for "fourth quarter", possibly October.
http://www.dccomics.com/blog/2017/04/25/titans-and-young-justice-outsiders-to-debut-on-upcoming-dc-branded-digital-service

What if Marv Wolfman and George Perez couldn't rename Beast Boy Changeling? What if they couldn't create Cyborg, Raven and Starfire? What if they HAD to use sidekicks and make The New Teen Titans work that way? The conceit is that that had already happened. Teen Titans was cancelled and then brought back. That return saw Mal Duncan take on roles as The Guardian and The Herald. But even Mal was a new character. So was Lilith. There was a Titans West. But that didn't work out. I would argue The New Teen Titans worked because of the technology and gadgetry of Vic Stone's Cyborg; the Gothic mysticism of Raven; and the science fiction angle of Koriand'r. I might lose that argument, but I'd still argue it. The core group: Dick, Donna, Wally, Gar - not to mention the classic Fab Five line-up - was straight up super-hero action. Written by dudes that were...just a little disconnected in the generation gap.
Still, what would a Teen Titans team look like if Marv and George had to use established sidekicks and not create NEW Teen Titans?
I definitely welcome suggestions: from the Golden, Silver and Bronze age. The characters must be established, not new creations. So, no Jaimie Reyes as Blue Beetle, unfortunately. Here are my choices, let me know what you think and what your choices might be.