I think the Titans history is currently a mess and primed for a reboot...we've had references to Hotspot (Jurgens' TT) and Cyborg (Wolfman's NTT) as past members, yet those histories never happened based on the nu52/Rebirth continuity. I suspect after the dust settles from Doomsday Clock and the "lost ten years" the Titans/Teen Titans history will be altered. I suspect the same reboot will bounce Roy and Wally back into being alive, and Donna back to being sober .
Similarly, I think the JLA history will be altered to acknowledge the satellite era (which has been creeping into continuity...but never happened). Ray Palmer and J'onn have been acknowledged as past members even though their eras never happened.