Two posts of mine from earlier this week and last:
(referring to Dinobots, Destructicons, Insecticons, etc. being in a movie)
"NO, they don't all need to be. These are movies we're talking about - not a television season where you have 24 episodes to introduce and tackle new characters/origins/ideas. If everyone is so worried that right now, as we type, this movie's "point" has been lost in translation, then think how much more diluted and "lost" it would feel if most/all of the Transformer's universe is introduced. It would make Spiderman 3 look like a brilliant, wel thought out, pulitzer prize script.
I personally would rather them keep it similar to the X-Men movies, in that you have your main characters and most of the time should be concentrated on them and introduce a few new ones in later movies."
(referring to Devastator)
And then Unicron eats Mars, robotic Dinosaurs blend in to hide from the general public, Junkions invade Earth, and the movie becomes a five year old's fantasy all over again.
NO THANK YOU.