Just so the remaining original AOE molds can get a premium deco release:

Bumblebee vs Stinger:
High Octane Bumblebee - car deco pretty much like the single release but with the yellow Autobot sigils replaced with the white one on the back and with the yellow stripe all the way round the front . The robot mode with more black on the torso/crotch piece, and black on the arms/legs/horns like the Takara version but with the added pinstripes. The paint on the calves and face in silver (rather than the black/grey on the Takara figure).

Stinger - well I guess this will just have to be the '14 version Bumblebee repainted, though remolded wheels would be a nice touch, as would a new head. Paint apps in robot mode as Autobots united Bumblebee, except the yellow swapped for red, obviously.

Highway Showdown (or something equally as descriptive) Optimus Prime vs. Galvatron & Lockdown

Armour Knight Optimus Prime mould, no need for any changes to paint apps here except for having the sword and shield in silver.

Galvatron: I'm sure the truck mode could do with more detailing, probably the lights more than anything. For the robot mode, a silver base rather than the whitish grey, all the wires/tubes painted in the darker blue, plus the those on the weapon so they blend in more seamlessly with the arm, plus the light blue from the Takara deco (but more extensively), and extra yellow highlights too. Gunmetal face, red eyes with the yellow outline.

Lockdown. I'm actually impressed with this figure as it is. It stands up well next to the Platinum Edition Auotbots. The fact he has the tail lights painted and the orange brake callipers painted too makes him one of the better quality deluxe figures despite his short leg syndrome. But for this set he would have an alternate head mould with the battle mask. I like his face but I know a lot of people like the face mask too. I'm not sure the extra black in robot mode that the Takara version has really does much for it, but maybe some extra silver highlights would help fetch out some of the moulded details.

Triple Changer Drift:
I can't decide if I'd want this as just an alternate deco or Drift as a Decepticon, but this would be the deluxe and voyager figures bundled together, both in the original black and orange deco.

 

Vehicon Patrol
2x PRID Vehicon (Deluxe), 2x Jet Vehicon (AM Deluxe, with PRID Weapons), 2x Legion Class Vehicons

Vehicon Aces/ Vehicon Crimson Guard (Cobra Homage)
2x PRID Vehicon (Deluxe, Crimson Colored) 2x FE Vehicon (Crimson Colored)

Seeker Scramble
Either FOC Generations Starscream, Skywarp and Thundercracker in G1 Cartoon Colors or US release of United Seeker Aces Sets (one for original 3, one for Coneheads)

Chaar Ambush
Universe Cyclonus, Generatons Scourge (United Colors), Generations Springer (Voyager), Generations Kup (G1 Colors/ Weapon)

Wreck and Rule (maybe 2 or 3 sets)
Voyager Springer, Voyager Sandstorm, Deluxe Kup, Voyager Whirl, Voyager Roadbuster, Deluxe Topspin, Deluxe Twintwist (keep the FOC Inspired remolds)), Impactor (Generations Warpath remold)

Dark Cybertron
Shockwave (either BH remold with G1 head or recolored FOC mold), Dreadwing, Waspinator, Bumblebee (Goldfire with 30th Head repainted in Goldbug colors), Metalhawk (Cyclonus heavy remold)

Dawn of The Autobots
Megatron (Leader Class, Autobot Sigil), Ravage, Nautica (Thunderblast remold), Nightbeat (hey, use the Jazz remold), Riptide (Energon Mirage repaint), Getaway

Seeker Reinforcements
Redline (Classics Starscream Repaint), Nacelle, (Season 1 Seeker with Dirge's color scheme), Cloudraker (Dirge Repaint in Onslaught Colors), Black Death (Black Starscream, unused G2 color scheme), Sandblast (Classic Ramjet in desert cammo)

Shuttle Assualt
Megatron (WFC), Starscream (with blaseter resembling Classics/ Henkei Megatron) , Ironhide, Ratchet, Brawn, Prowl

Lost Light Command
Rodimus (Cloud Rodimus in Movie Colors), Drift, Ultra Magnus (maybe a recolored Leader Class if Leader Class is in production), Ratchet (PRID retool), Hound (Univere recolor)