I'm okay with a few dragons slipping through. 10,000 is just overkill. I'm very apprehensive about that gate, especially since Zeref apparently created or helped create it. I'm hoping the dragons come from wherever Dragneel and the others are and not the past. Coming from the past might be annoying and messy.
I enjoyed this chapter but I have no idea where the story is going. Even after reading everyone's predictions I'm still unsure. Also, I'm hoping Jellal figures out what the heck is going on and prevents a worst case scenario. As things are I feel like he's one of the only people who can set us straight.
By the way, does anyone know why you can get Naruto and One Piece chapters on Wednesday but Fairy Tail comes out on Friday? Aren't they all from weekly Shonen Jump?