Surely that rancor model is a hint of potential worlds for TOR? A rancor would fit on worlds like Dathomir where they are common, and the currently announced 10 worlds don't seem to fit rancors being around. Possibly a Hutt gangster's "pet" on Nal Hutta, but they wouldn't leave us with the only rancor in TOR being a knockoff of Jabba's rancor, right? Let the speculating on potential rancor-inhabited worlds commence!
"Sir,we are beginning our search for these rumored 'underwater villages'.They will not stay hidden for long". -Battle Droid Commander OOM-9!