there's no way of knowing at this point...let me put it this way.
On April 4th (4 weeks from now) Star Wars A Galaxy Far, Far Away show is debuting...we still don't have times for this show
The last confirmed date for the fireworks dessert party is March 19th (one week left) and even though we see that the party might be extended from the calendar on WDW site there's still no confirmation.
I think at this point it depends on how construction or demolition is going in the old backlot tour, that's where the fireworks launch from.
Sorry to not have a better answer, I know it's frustrating...keep an eye on this thread, I keep it up to date with all announcement and strong rumors