The 4th Generation Pioneers of Iria, the titled new Mabinogi expansion which has been confirmed to be released sometime late in February will offer all Mabinogi players new races, new skills, new magic, a exploration system, dungeons, towns, and a completely new region Iria, which is three times larger than the current continent of Ulad. In fact this sure is a big patch--G4-6 in one patch. You can consider Pioneers of Iria to be Nexon's way of giving the players Generations 4, 5 and 6 all at once if you like to focus on Generations.
WarCry Network posted a "Pioneers of Iria Fact Sheet" that provides detailed information on this new expansion.

New Map
Iria is a new continent, about three times larger than Ulad, which is the original continent in Mabinogi. Iria features three areas which will be released in the Expansion Pack.
The first area is called Rano, which has plains, desert and rain forest climates. There are mustangs and ostriches which run through certain routes and players can ride like subways trains to go different places. This would be considered a human area and is where humans arrive in Iria. Look out for monsters, such as the Desert Dragon, Plains Dragon, or giant sandworms.
The second area is called Connus and this land is mostly desert. It's Longa desert is filled with sand storms. Here is where players will find Filia, the first Elf town. This town is where players who create an elf character begin in Mabinogi. Another special feature from this area would be the underground maze, or ant pit, which lies underneath Longa desert. Players will need to find their way out of this maze and can find hidden doors which can only be opened by special requirements. Players will be able to leave this dungeon by using teleport items like Wings of Goddess or Waxen Wing, but players who look around enough might find a room filled with treasure boxes featuring rare items which are can't be found anywhere else in Mabinogi.
The third area is called Physis and the entire area is filled with snow and can be quite windy. The Reus River is often frozen and surrounded by valleys and mountains. Giants can stomp the ground near Reus River and break the ice to go ice fishing. This is also an area where the field bosses, Mammoth and Yeti appear, so players will need to be alert..
All of these areas are connected through Mana Tunnels. Mana Tunnels are teleporters that work during the morning. Unlike the moongates in Ulad, these tunnels will take players to any other tunnel.
New Races
Elf - While their appearance looks similar to humans, elves have pointy ears and usually pale skin. Their fashions are elegant and swift compared to any other races. As a main choice of weapon, they use bows. The best thing about elves is that they can shoot monsters while riding horses and shoot two arrows at once. They also run about 1.3 times faster than human or giant. They live in Connus and if they spot a giant or their supporters, they will attack without mercy.
