They fixed Ahsoka’s lekku

Ahsoka Tano is a Togrutan, an alien species known for their vibrant skin, white facial markings, and large head tails known as lekku (the montrals are the part of their head bits that grow upwards like horns—I often get the two confused). Togrutans’ lekku grow in length as they age, starting off as more of a shoulder-length lob before growing into something more evocative of the Haim sisters.
So when Ahsoka made her first live-action appearance in The Mandalorian with lekku that seemed too short for her age, people were rightfully ticked off. Ahsoka’s lekku were shorter than they were in Rebels, which took place years before the events of The Mandalorian. It didn’t make any sense, and they also, frankly, didn’t look that great. Thankfully, her lekku are a lot longer in the Ahsoka trailer, and are more on-par with the length seen in Rebels. They also just look a lot better in general.