Actually, I am still going! The airport was only closed for a few hours, and it appears most flights are running on schedule. I'm excited to go, despite the earthquakes, hurricanes, and every other scary reason to delay.
I will not be able to do Mexico City and the pyramids this trip, but I will in February. It's also looking like rain most of the days I will be there. Nonetheless, I'm sure I'll finds some fun things to do. If I can try the zipline that goes across the bay, I'll definitely do that, and I plan to visit a Renzo Gracie Academy in Acapulco a few days while I am there. I'm not even sure if they speak english, because they replied in spanish. Google Translate is my friend this trip, and I'll def be working on my spanish between now and February.
More than anything though, I really feel bad for the people in Mexico City, or any other areas affected by the quakes this fall. Mexico has had it rough, and I'm sure there is many more months of recovery before most of them will feel back to normal.