User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-184.38.6.146-20121214230446

I don't know about anyone else but I'm wondering what monsters will be found in the Primeval Forest and what those giant bones belong to.For right now the most likely monsters are

The Rathian(I believe we saw her in the area TGS Trailer)

Gypceros(since it's been hunted in older swamps)

Yian Kut-Ku(some pics show it in a similar area to one of the pics)

Nerusukyura(I think that giant web supports that it or another monster lives in the area)

and thats about all the monsters but I'm still wondering what the beast man creatures are in the caves of the Primeval Forest.