How to train your dragon five years from now?

There's rumors circulating around the internet about the sequel to How to Train Your Dragon.

Some interesting ones can be found here: http://www.berksgrapevine.com/2012/11/sketches-of-adult-hiccup-and-astrid.html

Apparently, it will be much more multicultural - which makes sense, because what kind of Vikings DON'T explore other places and go and raid and pillage and whatnot?  And they have freaking dragons - like, their mounts were born for good ol' Viking raids.

But, you know - if they've never been outside of their island before...how will they know where to go?

Hmmm..

But the most important tidbit of all?  All the characters will be 5 years older, and Astrid and Hiccup are going to be HOT.