Sometimes, people don't like what they first saw, and so the designers of Pokemon obviously wanted a change. So in Pokemon HeartGold and SoulSilver, they took the chance to change her appearance, no...
you must go to the cape AFTER solving the power plant problem( get back the machine part). She is on a date with some dude and he runs away when he sees you and Misty is mad so she goes back to the...
i dont think so cause in fire red you ARE Ash. So she should follow you but she doesnt, which means brock isnt the same either. Also, in heart gold, she has pokemon she didnt have in the anime, so...