Sure enough, old and new Hidden Mickeys appear in the Osborne Lights this year at Disney's Hollywood Studios. Here's a new orange classic Hidden Mickey, about halfway down New York Street on the left as you move away from the Empire State Building.
... and a returning classic Hidden Mickey on a Christmas stocking nearby on New York Street.
The Hidden Cat can be found against a wall in an alley on the right side of San Francisco Street as you walk away from New York Street.
At the far end of New York Street, in front of City Hall, you can spot the University of Arkansas mascot - the razorback hog (a tribute to Jennings Osborne, who was from Arkansas).
Over at the Seas with Nemo & Friends Pavilion at Epcot, I like to check for Hidden Mickeys on the chalkboard at the second level of the Manatee viewing area. In this photo, you can see small classic Mickeys as bullet points by each line of information about the two current manatees in the pool. Hidden Mickeys on this chalkboard come and go. (Thanks to David and Celia Berset).
On the banner over the entrance to the American Adventure Pavilion, the small classic Hidden Mickey in the middle of the star has changed colors! It was black, and now it's white, but at least it's still there!
Which is more than I can say for the Hidden Goofy made of rocks at the bottom of the Seas with Nemo & Friends aquarium. It wasn't there when I checked recently, but maybe it will reappear. Thankfully, the Cast Members do maintain the classic Mickey in rocks that can be seen from the rear of the upstairs circular viewing area; it's been in place for several years now.