Do you think GF would bring her back? She's in an odd spot. Even though she came first, she's technically the girl for Crystal and not Gold/Silver. They introduced Lyra for Gold and Silver remakes, meaning it would likely be Lyra who comes back for future Gold/Silver remakes. There's also the consideration that they could just not do an explicit Gold/Silver/Crystal revisit and instead pull a Legends. But in the case of Legends, I would think they'd invent a new girl that looks like a middle point between Kris and Lyra that you could customize to look like either.