All DPS classes/specs after we are done tuning should yield a pretty similar DPS with similar gear/"min/max" speccing. It's going to take a bit of time until we reach that goal, though.
Given that, is there any reason one should take rogue in raid instead of druid? Druid can give buffs, can innervate (less useful in wotlk), combatres (mad useful) and even without the few talent points to tank can hop in bear (now that gear is same) in the middle of the combat and be pretty descent OT/MT and save the day.
I just... fail to see where rogue spot goes in this scenario, and not speaking about the "you can bring your friends bla bla" but real raids where efficiency and min/maxing is needed.