I would move mountains for Steven Spielberg to direct.
I would also do the same for Brad Bird,
I would even take James Cameron as a director for Trek 2016 as long as he does not write the script.
David Yates and Peter Jackson will be cool directors for Trek as well
Am sorry to break this to you guys but it would be better if trek 2016 gets an A List critically acclaimed director.
Bryan Singer is great, he directed X2 and produced First Class , it just happens that both films are considered to be the best X-Men films. However I am not a fan of how he incorporates one sided political/social propaganda in his films.