The Closed Captions misspell Perceptor's first utterance of Predaking's name as "Predicaking".
First Predaking is willing to stand and wait around with everyone at the end of last episode, but now is back to wanting to attack them in this episode.
Then Volcanicus suddenly wants to attack Predaking despite having been giving no provocative reason to since he previously wanted to attack the others instead.
Victorion says the D-word.
When Megatron first meets Optimus Primal, he actually tries to be witty and quipping again, but because he also has to be all serious in this scene, his quips come off as no longer fun anymore. This show has sucked the fun out of Megatron.
The Closed Captions typo Optimus Primal's line of "You were warned" as "Your warn."
Like Devastator back in Combiner Wars, Predaking for some reason claims to work for Megatron no longer. Is there no one still loyal to Megatron anymore?
Volcanicus apparently has his butt stuck in a pond.
While his combination sequence in episode 1 was purely mechanical (as it should be), Volcanicus's decombination sequence seen here is a cheat that turns all his components into balls of light that break apart before returning to their solid Dinobot shapes.
And of course, as everyone and their mother expected, the "My name... is Optimus Primal" bit is used as this episode's final shot.
We could do other shows, too. Headmasters, Unicron trilogy. 
