A new movie was announced for Dragonball Z set to release in Spring 2015, end of April beginning of May. Just noticed this announcement on Saiyan Island.
Official Website for movie: http://www.d2015gw.com/
The only thing the website says is "The Whole Universe Has Been Waiting. A Godly Dimension of Battle Begins."
Personally I'm pretty excited for this. I have loved Dragonball Z ever since I was a kid and I'm excited the story is being continued. Ah.. I still remember those afternoons spent watching Toonami.
What makes it even better is Akira Toriyama, will be controlling everything and he will use his own original concept, screenplay and character designs.
Here are the Saiyan Island articles:
New Dragonball Z Movie in Spring 2015
Dragon Ball Z 2015 Movie: Tagline Revealed, Promo Image