There's soooo much going on over the next week. Parade on Emaar Boulevard on the 28th Nov, all the skydiving/parachuting/hot air ballooning over the Palm/Beach and Desert, there will def be fireworks but haven't seen details as yet. Loads of cultural things too.
More info here
http://www.dubaicalendar.ae/en/event/events/uae-national-day-2015-1.html
Union Co-op has a huge array of Flags/hats/banners/etc if you'd like to join in the celebrations :)