Guess they changed her to a penguin because there's another lamb character in Doc MacStuffins and thought kids would get confused, or maybe they just wanted an actual bird in there for the sake of diversity. Still doesn't seem like Rowlf and Scooter (and to a lesser extent Skeeter) will be in here, either, at least as part of the core cast. Maybe they'll be recurring like Bunsen & Beaker?
I like how the new logo incorporates the colors of all the cast: pink for Piggy, red for Animal, yellow for Fozzie, green for Kermit, blue for Gonzo, and purple for the new character who may or may not be Bobbi.