Starscream was my favourite of the four, but that colour scheme did put me off for quite a while.

The single release of Bumblebee in Studio Series suggests the other three will get another release (maybe in different colours but unlikely remolded).

There's a couple of other designs that I'd hope get a release. I only recently heard a suggestion that the Transformers Prime toys that weren't show characters (Rumble, Kup, Thundertron) were toys for a cancelled TF game.