User blog comment:Bobofango/Monster Hunter Portable 3rd - Info Leaked/@comment-1520318-20100318130256

Keep in mind that the game is only 50% complete. There will be more areas and monsters in the future. Elder Dragons will be in it for sure. But they are usually never revealed until a couple weeks after the game is released.

About the data transfer, it hasn't been confirmed yet. Ryozo only mentioned that they "might" do a bonus unlocking with a MHP2g savefile.