The latest wave of the Combiner Wars Deluxes (Wave 3, featuring the Protectobots) have begun to arrive in the hands of collectors, including yours truly. Two of the pack-in comics have strong hints hidden in them for upcoming releases - namely, a Combiner Wars Vortex
and a possible Prowl
What we have here are a possible remolding of First Aid as Prowl - lineart included in the designer desk section of the pack-in comic for First Aid shows First Aid's body with a distinctly different head. The head has the familiar crest of Prowl (or possibly Ratchet) on it - we're going with Prowl since he was listed in store computers a while back, and is a major player in Combiner Wars. Though it's been pointed out the crest lacks the division in the middle which is distinctively Prowl, so chalk that as one more point in the "potentially Ratchet" camp.
In the Blades comic, there is extensive lineart of the helicopter mode. However, on closer examination, you can see the nose of the helicopter is more angular, the arms of the robot on the sides are different, with no missiles and "tubing" details, suggesting new arms, and the weapon mounted beneath the helicopter is very different to Blades' twin gatlings which he inherited from Alpha Bravo. It's this that got our attention, because the single gun below the helicopter nose is very reminiscent of the one on Generation 1 Blades.
Evidently someone sneaky at Hasbro dropped these two advance looks in as a bonus to fans. Those who were collecting the earlier Generations around 2010-11 might remember Hasbro used to do a similar thing with the instructions. Check out the images showing the potential new Vortex
attached to this post.