Here's my list, I tried not to look too much into other people's lists and am fully aware that my choices may not be very popular around here

fuck it I went with toys I want to have on my shelf, but I did keep in mind stuff I think we NEED to complete stuff already started by Mattel. No particular order:
Zatanna (Perez costume)
Mr. Terrific (Sloan)
Johnny T. & Thunderbolt (I am perfectly fine with the Thunderbolt being a non-articulated accesory)
Huntress (Bertinelli)
Aquaman (hook and beard)
Kyle Rayner (FA)
Hush (I know, I know ...)
Speedy (Roy)
Aqualad (Garth)
Felix Faust
Extras:
Batman and Robin (Grayson/Damian) 2 pack, alternate unmasked heads. Release it as a con exclusive, rerelease it at retail later, laugh all the way to the bank. You are welcome Mattel
Will Magnus and Niles Caulder 2 pack.
These lists really puts into perspective how much cool stuff is still out there for Mattel to do. Almost made the cut:
Mordru
Prometheus
More Rogues
Dawnstar
Oracle
Granny
Some Female Furies
Scandal, Ragdoll, and the rest of the Secret Six
Shining Knight/Winged Victory
Vigilante
Dove (Don Hall)
Killer Croc
Mad hatter
Talia
Ra's
Blok
Zauriel
Aztek
Salaak
80's Nightwing
90's Nightwing
A fuckin' proper 90's Tim Drake Robin
Royal Flush Gang (I REALLY want this, but the last thing we need is to start another team that may never be completed)
Tommy Tomorrow
Vandal Savage
Dark Flash (Walter West)
...
I'll stop now