Re: Ms. Marvel - SPOILERS
I seriously doubt that she is dead. Dark Reign is about replacing heroes with their 'darker' counter-parts. I'm sure the next 'big-event' will be Nick Fury and the other heroes taking back SHIELD (or whatever Osborn renamed it as) and kicking the bums out. I feel pretty sure that the next event will be the return of Captain America (it could still be Bucky, but he will do more classic Cap stuff).
Sing glorious, victorious,
One keg of beer for the four of us.
Sing glory be to God that there are no more of us,
For one of us could drink it all alone. Damn near.