Botcon 2011 Set Theme Hint #1

{mosimage} Botcon has sent out its first hint for the Botcon 2011 exclusives via Twitter. What is it?

Just realized SO many stories and/or TF continuities (as a whole) were told in installments/seasons of 3… Well, get ready for Season 3.5!

So what does that mean? G1? AEC? Animated? Beast Wars? Discuss your guess here! Thanks to Code of Walky for the fast heads up!