Bioware have launched a whole FIVE new videos related to all things Mass Effect 3. They show of the Player Choices, the Co-op multiplayer, the combat and action, the personalisation you can do your guns and your Shepard and the enemies you will be fighting.
I actually haven’t watched ANY of them. You see, all the sites I’ve seen these videos posted on mentions Spoilers (as I am now) and I don’t want to spoil any of this great game. That said I thought I ought to tell you folks about them in case you do want to see some of the new stuff. Again, that said I actually had a bit of trouble finding the various videos on Youtube. So I’ll just refer you to Eurogamer who have all 5 videos set out in a nice format for you to watch at your discretion! Enjoy!