I also can't seem to understand what people mean by "it doesn't feel like Mass Effect". Such a silly complaint, since we've known since the beginning that this is a fresh start for the series. It doesn't have to feel like old Mass Effect, because it isn't old Mass Effect. Don't ever become game developers, because we need series to be fresh and continue evolving, not be stuck in the past and stay the same. That's one of the bad things about today's gaming industry. Why oh why can't people just get over this already?
Old Mass Effect is done, gone. Its story has been told, and there's nothing Bioware can do with it thanks to the endings. Instead of consolidating player choices further for the sake of a canon, which we all know people would crap on it all the same if they did that, they're going to let dead horses rest and try to do something new. If you don't agree with it you can simply not play it, but try not to hold the series back or expect Bioware to hold it back to satisfy a small minority.
Also lava tornadoes. How can you not love lava tornadoes?
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New or old, it is still the Mass Effect universe. Some continuity is necessary to convey this to the gamer. Music is one easy way to do so. N7 logo, weapons tech, having some familiar aliens another way.
The decision in the promo to:
1. Start with a desert planet
2. Play western music
threw me off, for sure. I believe it was intentional. Sure got your attention. No? Certainly a reaction. And, that's the purpose of a promo/marketing 101.
Besides, This is a cinematic promo video, representative of the final game but it is not part of the end product. Bio made sure that the DISCLAIMERS were clearly visible, Acknowledging, perhaps, the marketing mistakes made for DAI.
The "leaked Poll questions" strongly suggests a dynamic lawless environment. An excellent backgound for story telling and the Wild West intro seems appropriate... for a promo anyway.