Last year before the fireworks they brought various Star Wars characters on stage and posed them for a photo op. I saw it on video before my trip and decided it wasn’t that important to see it in person, so I chose to watch the fireworks from farther back (since the hat would block the view of the fireworks if you got too close to the stage). I’m not sure exactly where I’ll want to be this year yet, since I don’t know where the new stage is going to be.
I watched one performance from Echo Lake last year. This isn’t a great picture, but it gives you an idea what the view is like over there. Not sure how easy it would be to make your way down the street to get there after Fantasmic, but you could probably cut through shops and manage to do so.