"They're going to have their hands full with that Tarn business, I bet."

It's the truth of it. Megatron is going to have to confront Tarn eventually. They all know that. Bumblebee would like to be around for it - if only to step in when it's been enough. Megatron might do something he could come to regret later...

That's neither here nor there at the moment.

"So when do we head out?"