She both disappointed and surprised me. I don't know, we really don't see much of her.
>>43832516OP IS silly for expecting GF to fill in the blanks with Adventures references, but on the most basic level, Adventures Blue-Green was a wannabe femme-fetale that poked around in the bad guys business. Her not only knowing about Mewtwo, but knowing that it could mega evolve and tracking its stones in advance does, on top of being a worthy task for an ex-protagonist, feel like a fitting last chapter to an unwritten little cycle.
But Gen 1 doesn't have a lot of room for extra characters without just giving away what to do even more, so I'm not sure what the best place for her would be. If I could have my shameless way I would use her to point out obscure game lore or make references to old rumors and Gen 1 design oddities ("Your partner Pokemon reminds me of this "Pikablu" thing I've been lookin' for..."). Really have fun with her being this super strong trainer just looking for funny junk since we already have the ex-Rival being the "useful veteran".