like all other ecoboost engines the rated values only come with 91 octane pure gasoline - E10 mixes and lower octanes will of result in potentially lower power and torque ratings.
The 3.0 ecoboost is the 2.7L ecoboost with a larger cylinder bore - it's not new exactly. And I suspect in 2 years the 2.7L ecoboost will go away and only the 3.0 will remain. but that's just a hunch on my part.
What will be more interesting will be if they move the displacement of the 3.5L ecoboost base to the 3.3L and keep the power level near the same. Then offer a newer high tier spec 3.5L ecoboost that is the HO raptor motor.