Before i begin i have made this thread to have thoughts and ideas upon from previous movies which haven't been explored and may be perhaps explained or looked into in the next installment. This will contain spoilers so please dont read if you haven't seen it.

I went to see on Sunday just gone TF4 with the wife in gold class and enjoyed it thoroughly. This movie left me with some questions and possible thoughts based on the next chapter.

First observation of mine, is that when Ratchet was attached, his body was destroyed, but before he was terminated for a better word, we saw Lockdown pull out his spark or core, does this mean if installed into a new body this would revive Ratchet? As in theory his consciousness is contained within the spark. As Optimus explains this to Marky Mark

Obviously the most in your face bit is Optimus flying off, to find the "creators"
We know that in one of the movies we saw Megatron attempt to pull Cyberton into Earth's gravitational pull, but then the portal closed and a big chunk of cybertron was destroyed, would he travel back to the ruins of old cybertron toi search for other Autobots? Maybe We may see some old favourites reintroduced?

There was a rumour flying around that Michael Bay would retire and his protege would take over the directorship of the new movies, and there was also word that moving forward (this would be partly to poor sales from Hasbro not having enough "characters" in their toy lines) would focus more around the Bots V Cons rather than Spike and company.

Those are my theories and predictions not too sure what the rest of you guys think.

Cheers

CP