Look...
we've still got half a year.
in this half a year, we SHOULD be getting Meet the Pyro, Source Filmmaker, the Second Saxxy Awards, TOBOR Mode, the Meet the Pyro Update (I'm assuming we'll get atleast one set/weapon per class), another Summer Update, Manniversary 2, Halloween 2012, and Australian Christmas 2012.
so, assuming Meet the Pyro and Source Filmmaker are considered "big", then yes, 2012 will be a BIG year.
When we'll actually be GETTING any of these big things is a whole 'nother matter.
Are any of these updates really gonna be game changing though?
-The Halloween update will probably be only reskins, more Gibus & Skull forms, and probably 1 new Halloween hat.
-The Christmas update will probably be a few hats and weapons from the workshop.
-The summer update will just be another crate with new hats.
-2nd Saxxy will be new hats + more Saxxy distributions and maybe Source Filmaker
-MtP will probably introduce Tobor Mode, some new weapons and hats, and honestly it is the only update that I am looking forward to.