Dreadwing is one of the few Cons (the others being Megs and feasibly Predaking) who can take on Optimus one-on-one, so having him up against the plucky scout would be pretty funny
Oh, good ideas! I think it could have also played up the whole mutilated-by-Megatron aspect of Bee's past. Dreadwing could have been rather shocked that his Master would rip up a poor scout's throat and been like: "whoa, that's not cool."
I know right? But just imagine a whole episode of poor little Bumblebee being chased by Dreadwing and lured into traps.
Oooh, that would be have been fantastic! It could well have been one of the most intense episodes of the bunch, and given more screentime to the two of them
How do you think it might have ended? An actual fight to the death? The other Autobots rescuing Bee? Or Bee and Dread coming to a mutual understanding and deciding to just go their separate ways to think about things?