Twin Peaks: What You Forgot About How the Original Series Ended

Just prior to Leland's (Ray Wise) death, he says that Laura is welcoming him to the other side. But both Laura and her lookalike cousin Maddy (both played by Sheryl Lee) are seen in the Black Lodge sequence in the finale. Now, they both could certainly have been evil doppelgangers of themselves, but perhaps they are the real deal, their fear holding them captive in the Black Lodge. Lee is appearing in the revival, but the context of her appearance is as yet unknown. Will it be strictly dreams or flashbacks? Or might someone be venturing into the Black Lodge to find her?