Can wait another 2 to 4 weeks - no big deal, especially after having waited so long. If he keeps his word, that would mean 3 trials to be announced in 7 weeks. I wont mind if 2 trials are announced by EOY, while he gives a hint, before year end that the 3rd trial will start in the month of January or Feb. 2018.
I am assuming the time spent on analyzing the PK/PD data, FDA involvement and the new FDA guidelines in accordance with the 21 Century Cures Act is going to drive all the 3 trial designs - hence the delay.