There's 2 reasons why she doesn't need the help ;-)
She's definitely outgrown her Sydney Shanowski character :-D
--edit--
They've changed Starscream's voice :-(
Megatron isn't a gun, not sure what the hell he is, but he's still cool.
Bumblebee isn't a Beetle anymore, but his character is still the same.
Oh, and Prime is still Prime - Cullen is back! :-D :-D :-D