I re-read their bios today and they both say something about them doing anything and taking any chance to be heroic and impress Prime and BB. This means that they both probably go after Devs, Mudflap screws something up and gets sucked towards him and Skids jumps after him to save him, colliding with Mudflap and them both go grinding through Mixmaster and come out the other side in little green and red charred chunks. At the end, Prime could do something like with Jazz where he either holds or stands over their remains and gives a short little "they were great additions to the team...so young... gave the ultimate sacrifice yadda yadda" bull. It would have an emotional impact on the audience (seeing how they were like kids and all) and give the movie good reviews. Also spoiler ahead ***SPOILERS*** ***MAJOR MAJOR SPOILER LAST CHANCE TO TURN BACK!*** Someone did a thread about the junior novel adaption of the movie and it was very short saying little about some lesser characters like Arcee and Barricade. It says that the end was Prime standing over the Fallen's dead body and a few dead Autobots and Wheelie celebrating over a win. ...there goes some people's hope of introducing Unicron. I think that that ending was made that way to leave it open, but not too open. If the writers don't return and the new ones screw it all up, they can end it with ROTF (a frightening thought) with an ending like that, you don't need a sequel.