Yes, there is at least 3 new ones.
In the MHp2G, there were
Naruga Kuruga
Hypnoc
Volganos
Yamatsukami
Ucumbulas
I KNOW the first three are in MHFU
there English names are,
Nargacuga
Hypnocatrice
Lavasioth
The Nargacuga is a fast, black, panther like mosnter, similar in shape to the Tigerex. It moves pretty fast, so agility is needed.
The Hypnocatrice is an annoying feathered bird-like wyvern, similar to the Kut-Ku, faster, and can shoot balls of sleeping gas. It likes to kind of "hover-bounce" around at you, and it is difficult to dodge.
The Lavasioth is a very large lava version of the Plesioth. It can shoot fireballs, and when it slithers on the ground, it hurts A LOT, and it can turn when it does it, at sharp angles, so it is nearly impossible to dodge.
The Yamatsukami, is a HUGE floating blob of a thing, that you would have to see to believe. I can't explain it. It has thunderbugs inside of it, but these are more powerful ones, cause they explode. It also has a suction attack you have to watch out for, cause it will kill you in one hit, no matter what.
Finally, the Ucumbulas is like a giant Ice version of the Akantor.
It does not have the wind tunnel attack, but instead, when it digs undergound, it can swim in the ground, hurting you quite a lot, and it is nearly impossible to dodge.
All of these new monsters show up in the game once you hit I THINK HR5, OR, when you get all the way through the elder ladie's quests, and begin the Elder Cat quests.