druids wont have any more trouble getting into instances than they do now, which is to say, things will be fine.
i have yet to hear of any decent group passing up a druid for anything. maybe in heroic shattered halls where the choice is between a mage and a druid, but even then you CAN do it with a druid; any druid can off tank given the right gear, and thats as good as a CC. any druid can feasibly fill a role in a group. maybe a feral is best as a tank or dps, or a moonkin is best as a nuke, but even if the persons spec doesnt fit the bill of the role, nothing says you cant respec.
and yes, if other people respec for instances (and they do) then druids can too. i know ive respecced prot on my warrior for more than once heroic instance, as well as kara raids, and ive respecced full resto to heal instances above my level before.
Edited, Nov 12th 2007 10:06pm by Quor