To use the 'Ultimate' title, they really should surpass previous events!
Seeing as there's no way of knowing what the show will actually involve this year, I'll make a bit of a wishlist
First of all, I'd like the soundtrack, as previously mentioned, to use music featured around the park.
Perhaps mixed into a medley, 20 seconds or so of each song, taking you on a musical tour of the park.
To give the show a bit more of a story and feeling, I think the park should invest in large projectors to be pointed at the towers. 2 examples I can think of these being used in other park are: Disney, for the new 'The Magic, The Memories and You' show.http://www.youtube.com/watch?v=8JUgeE1skTE
And USF used the technique during last years Halloween Horror Nights in the 'Acid Assault' scarezone to give the impression the buildings were crumbling down around youhttp://www.youtube.com/watch?v=AdrsPelXVJY
Having seen both in person last year, I found it to be very effective and extremely enjoyable to watch, however at points, Disney's show did feel as though it was 'dragging on' which I think coupling it with fireworks in order to tell a story would solve.
Looking further into the future, a water and light show on the lake in front of the towers would be fantastic all year round, and a different show could be used on firework nights to compliment the event creating a very immersive and modern firework experience unlike anything currently seen in this country! There are a few great example of these shows, but the end of the 'Fantasmic' show at Disney's Hollywood Studio's springs to mind when coupling a water show with fireworks. Absaloutely stunning!