Well, it's a great trailer... top-notch editing and built around a fantastic song. Reminds me of the Superman Returns teaser.
I hope it lives up to the trailer, but I don't really have any expectations. While I've grown to dislike the two sequels less over the years, I still find the original and The Animatrix (specifically The Second Renaissance) tell a story that's cohesive and satisfying, without really needing any further installlment. One would hope the machines and humans make peace in the end, as both clearly deserve to exist; but do we need to see it? ... unless it's done extraordinarily well, of course, which it hasn't been yet.
I'll undoubtedly go to see this, if only out of curiosity. Since Neo and Trinity died at the end of the third film, I'm a little curious at how they've been restored. I'd have said they're just disembodied minds existing within the Matrix, but we did see that one shot of Trinity in the trailer that looked like it took place in the real world... so was she restored to a clone body, or did they heal her original one?
Disappointed that Weaving and Fishburne won't be back, though.