Barrier being added to SR is cool although I'm not sure if it will see use, it could make for a nice spell in certain comps though I guess. I'm interested to see how Heal has been reworked and I hope they buff the other underused spells too.
I'm very excited for the Item changes as they hold the most potential to change the game as will the jungle, I'm hoping that the new items will include something for the growing roster of AP junglers.
I wonder if heal might not be a targeted effect now, rather than just healing your champ and supplying AoE. Maybe making it into a reverse ignite? Targeted massive increase to hp regen? --- Tired of photobucket and imageshack? Ask me about dropbox.