It’s been a trend for Zelda remakes to have teases of future games in the series, such as Ocarina of Time 3D having Skyward Sword references. Twilight Princess HD seems to be no different as it has some nods to the upcoming Legend of Zelda game for Wii U.
In Chudley’s Fine Goods and Fancy Trinkets Emporium there are two portraits hanging on the wall that feature stills of the Zelda Wii U trailer. One shows Link riding Epona in a field while the other shows the scene before Link rides past while being chased by a monster.
The video showcasing the easter egg comes way of HMK on YouTube:
The Legend of Zelda: Twilight Princess HD comes out for Wii U on March 4th.