In #TheRiseOfSkywalker footage Rey is seen wearing a dark hood on her head, with evil sith eyes. You hear the voice of the Emperor saying "it nears it's end," followed by his laugh. Rey ignites a RED lightsaber which she unfolds into a double blade and HOLY MOLY!!!!!!? #D23Expo pic.twitter.com/oSSDzO7ghe

I have suspected since FORCE AWAKENS that Rey might go dark.

She's surrounded by red, and HER STAFF IS FREAKING ALIGNED WITH KYLO'S LIGHTSABER#TheRiseOfSkywalker https://t.co/VL40O7E9iF pic.twitter.com/QUSlesl671