grey's spoilers

When asked if Derek gets hurt in the premiere, Ausiello answers : "Judging by that infamous promo, ABC certainly wants you to think that, right? Well, allow me to clear things up for you -- by way of a multiple-choice quiz! (Why should ABC's promo department have all the fun?) I can confirm that two of the following take place in the Sept. 25 season premiere -- one for real and the other in Meredith's imagination (the other two are outright foilers).
A) Rose stabs Derek.
B) Derek suffers a heart attack and is visited by the ghost of Denny.
C) Dr. Burke returns to Seattle Grace and shoots Derek in the face before turning the gun on himself.
D) In a flashback, we learn that Derek got into a car accident shortly after leaving Meredith in the candle field."
We can obviously eliminate B and C but which one is "for real" and which one is "in Meredith's imagination" ? No idea !!
Ausiello also adds "Don't be surprised if the season premiere leaves you a little, um, Lost. No, the Chief isn't going to turn the donkey wheel in the basement and make Seattle Grace disappear. Rather, a flash forwardish sequence will show us what two characters might be up to several years in the future. " We can bet it's MerDer !!
Flashbacks and flashforwards !! Are they trying to wooe Lost viewers in while we're awaiting the new season ? lol