I don't think it should be charli. Whitney hasn't been around her much to warrant it. But I could be wrong and they'll squeeze in some scenes with Charli and Whitney right before she leaves for good and it'll show how close they are haha
I was 100% sure she would get Charli but it would seem someone has already beaten her to it and taken Charli, along with all the Slaters, into some black hole, never to be seen on the square again.
Jokes aside I still think it might happen, after all nobody has really had any scenes with Charli XYZ yet seeing as she's disappeared