I believe that GD has been burnt multiple times in the past by shorts and nervous longs about missed timelines that he does not offer up too many dates and if he does, it's because he's confident in hitting them. With all of the work that has already occurred with the FDA on end points, trial design/review, and most importantly because this is a horrific disease with no known cure, the FDA will fully accelerate its approval to no more than 3-4 months in my opinion. Obviously, all bets are off if the submission is riddled with errors and omissions however, OMER and GD don't give off that type of impression about a team that is blatantly incompetent.
My 2 cents and basically what it's worth.