I've been watching this pretty closely since I have tickets for 2/16 and I want to make sure Disney doesn't go and adjust hours on me (the early hours my date are actually a big plus for me). From what I see, the original times that were advertised for all of the published DAH dates are all still valid, none of the park hour adjustments were to these dates.
Event Hours
Granted Disney can do whatever it wants but it seems like with a hard ticket event like this with very clear dates and times (on the website, on my tickets, etc), this event isn't likely to get flexed around, right?