Milo Sparks, who introduces himself to Zoya after she finds out about Julien's party, is the son of Michelle Trachtenberg's Georgina Sparks. During the show's original run, Georgina famously tricks Dan into thinking Milo is his son.
In Milo's apartment, not only do we see photos of Georgina with famous "friends" like Ed Sheeran, but there's also a large framed picture of Blair. "The idea that Georgina has a shrine to Blair in her house is just so much fun," Safran told TVLine. "Of all these people she's around in her life, her target is still Blair. She has to see Blair's face every day to energize her. Or to be inspired to do evil."