Excited but also skeptical
I love the original trilogy, ending and all. It's my favorite game series and one of my favorite science fiction stories and universes in general. I'm a bit skeptical though. People keep leaving the development team.
My prediction is that the ship in the teaser is an "ark" of sorts. A precautionary measure in the event that the Reapers were unable to be stopped. Representatives of all the species as well as many of the tops in their fields being sent to the Andromeda galaxy to start anew. This allows them to bypass the ending choice. Which normally I would cite as a cop out, but in this case I get it. Each of those endings leaves a vastly different universe to be accounted for. A separate game would need to be made for each ending to account for that level of variance.
I like the claims that they are making the focus on exploration and from the sounds of it, the customization of the ship will be detailed as well. I can't wait to see what they have in store for us at E3.
"Once you assume a creator and a plan, it makes us objects in an experiment." - Christopher Hitchens