Just like the Gen1 Sludge image in Ep4, this episode had Torq3 from Gen1 in the background of Bumblebee's computer game. It's odd little things like that which give us 'old timer' fans something to laugh at when we see them...

I think it was probably a script error when Magnus said 'Shockwave' instead of 'Longarm' at the end, because the Autobots don't know Shockwave (or even the name???), only Longarm. Even if he revealed himself to Magnus before the confrontation, Magnus wouldn't be telling Ironhide that, because Ironhide wouldn't know who he was talking about.

Tom Kenny did a good Wasp(inator) voice. And the Jet twins were actually voiced by two different people. I guess there was so much altering of their voices, that they sounded the same.

And I wouldn't think that ending is permanent, because Hasbro still have 2 toys in the leader size class to sell (still in stores here and globally), and wouldn't aprove of his removal from the show just yet. It's their largest non-gimmick size class for Animated toys, so they would want to get as much screen time as possible, and he hasn't really been featured too much yet.