For what it's worth, Honda did include an actual teaser of the 2018 Odyssey, but it was hidden in a thicket of children's drawings. Honda's Odyssey development team called upon their children to draw pictures of the new minivan, and it's safe to say these teasers don't give anything away, unless you were worried that it wouldn't come with doors or wheels.
The actual teaser offers a bit more. There's a floating D-pillar, which is becoming a hot design item. The taillights are wildly different from the previous model, with a look that's about as futuristic as the taillights on the. And, thankfully, it will have both doors and wheels, because we can't replace those features. Not yet, at least.
Honda promises that the 2018 Odyssey will feature new powertrains and a whole host of new features. I'm not sure what that alludes to, but answers will arrive in the form of a minivan on January 9, 2017.