Who do you think will be the main character in M Effect 2?

According to M Effect 2's teaser trailer, Commander Shepard will be dead in M Effect 2. A couple of the games developers have even confirmed this information in a recent interview stating that: "Everything said in the trailer is true..." however they also stated that one should keep their save files from the original game because it will carry over to the sequel in some way. At the end of the trailer when Shepard's death is announced, a geth is seen wearing his armor...what do you think this means?