Good question, still no trial. Still no trial date that I know of.
Looking into this I found Mr. Robert Mueller’s comments on MAJ Hasan, the FBI did not drop the ball. https://www.motherjones.com/politics/2013/08/nidal-hasan-anwar-awlaki-emails-fbi-fort-hood/
The most recent MAJ Hasan news (2017), he is one of 6 at Fort Leavenworth on death row, no news on how this hunger strike went. https://www.armytimes.com/2017/04/04/fort-hood-shooter-goes-on-hunger-strike/
Major Hassan...
Probably Still getting
A Paycheck.