Hope you all realise that druids are not the only type of tank getting a bit of changes, pallys are changing in LK just as hard/fast (new agro abilities, scaling with AP as 2 examples). Also it has been stated in numerous blue posts that all 3(well dk as well so 4) tanking specs/classes will get about the same type of viability. In the end in LK it will be what works best for you.

Check out http://www.failsafedesign.com/maintankadin/index.php for some information and remember its still all beta and even in the first few patches things will be ironed out by blizz and are opted for changes.