While i realise these are not the final setup i was just playing with them and realised if you stack all the healing one we would be very hard to kill in most situations. Check out this setup (not my final) http://www.wowhead.com/mists-of-pand...calculator#oYD
Talents aren't final. They're just showing you how they do things at blizzcon. Remember path of the titans?
I'm not saying the entire thing will be scrapped (although theres that small chance it will) but if we look at this talent calculator compared to the one at MoP release, I can guarentee it will be very different.