Unbreakable Part 2

When are they going to make Unbreakable Part 2? I think it would be an awesome franchise to extend into a sequel.  http://www.imdb.com/title/tt0217869

The storyline in the original just seem to fall into place so nicely at the end for a sequel st the end i assumed it was a given but as it's now 10 years since Unbreakable was released i assume its not going to happen.

Considering how bad Shyamalan movies have been lately....maybe thats a good thing?