UPDATED: SDCC 2017 - Trypticon 'Cereal Box' Poster Reveals New Titan Masters? Headmaster Arcee Confirmed!?

One of the more fun things Hasbro's doing this year: an SDCC poster giveaway featuring a cereal box-themed poster for "Trypticon's Titanmaster Crunch!" But the back of the box, which offers a presumably complete listing of all Titan Masters, has some very interesting names on the back. Keep reading for a list! Autobots:

Autobot Apex (Powermaster Optimus Prime)
Brawn (Titan Master)
Clobber (Titan Master who looks like Grimlock)
Convex (Perceptor)
Daburu (Twinferno)
Diac (Voyager Optimus Prime)
Dynamus (???)
Emissary (Cerebros/Fortress Maximus)
Fengul (???)
Firedrive (Hot Rod)
Flameout (Twin Twist)
Flintlock (Kup)
Freezeout (Topspin)
Furos (Hardhead)
Ginrai (Presumably Magnus Prime)
Hyperfire (Blurr)
Infinitus (Sentinel Prime)
Leinad (??? ...but thanks to Chris McFeely for pointing out this is Daniel spelled backwards!)
Loudmouth (Titan Master)
Nightbeat (Titan Master)
Overboard (Titan Master based on Overkill... who is now an Autobot!?)
Parsec (???)
Professor Go (???)
Ptero (Titan Master who looks like Swoop)
Ramhorn (Titan Master)
Refractor (???)
Repugnus (Titan Master)
Rodimus Prime (Titan Master, Chaos on Velocitron)
Sawback (Titan Master)
Scorchfire (Windblade)
Shreddicus Maximus (Primitive Skateboarding Optimus Prime)
Shuffler (Titan Master)
Sovereign (Alpha Trion)
Stylor (Chromedome)
Teslor (Brainstorm)
Throttle (Breakaway)
Twincast (Blaster)
Ultra Magnus (???)
Xort (Highbrow)

Decepticons:

Aimless (Misfire)
Apeface (Titan Master)
Blowpipe (Triggerhappy)
Blunderbuss (Broadside... is a Decepticon? Okay)
Caliburst (Slugslinger)
Chasm (Quake)
Crashbash (Titan Master)
Darkmoon (Astrotrain)
Doomshot (Voyager Megatron)
Dreadnaut (Overlord)
Fangry (Titan Master)
Fathom (???)
Fracas (Scourge)
Gatorface (Krok)
Grax (Skullsmasher)
Hazard (Blitzwing)
Monxo (Wolfwire)
Murk (Octone)
Necro (Full-Tilt/Trypticon)
Nucleon (Galvatron)
Ominus (Sky-Shadow)
Revolver (Sixshot)
Rot-Gut (Early name for Terri-Bull, who is missing from this list)
Scorponok (???)
Skytread(Titan Master)
Soundblaster (Soundwave)
Thunderwing (Siege on Cybertron)
Vorath (Mindwipe)

So in terms of unclaimed Titan Masters, we have Ultra Magnus and Scorponok as the likely Celebrity Guest-Stars at the center of the next two Titans Return boxsets. That leaves us Dynamus, Fengul, Leinad, Parsec, Professor Go, Refractor, and Fathom.

Going by the powers which are difficult to make out here, Chris McFeely reports that The Allspark has concluded that Dynamus, Parsec, Fathom, Ginrai, and Professor Go correspond to Quickswitch, Nautica, Tidal Wave, Magnus Prime, and Metalhawk. That still leaves a few unclaimed names, but not many. Not enough for two more boxsets, oddly enough. Hopefully we get more information soon!