These have been out for several months, but this is the current can design for Mtn Dew. Above I have the regular, diet, and caffeine free diet models.
I've done several posts regarding Mtn Dew and their Game Fuel promotions for various video games. These cans came out to promote the newest console itself, the Xbox One X.
These are two holiday-themed cans that were released. The first was Dew USA which came out around our Independence Day. The second one is Holiday Brew which came out for this Christmas holiday season.
I'm sure there were other designs and promotions, but these are the ones I saw. And now let's see what 2018 brings...