Frontier for Skyrim is a massive landmass mod which introduces a new continent to the game. This is the land of unexplored wilderness filled with barbarians and threats, but also towering cities, proud castles and thriving villages.
Expect the first Alpha release this weekend, or on monday. Those who want to check Frontier out then and see what state it is in, will have an opportunity to do so. The Alpha isn't perfect, of course, but I'll be updating it regularly here on ModDB from then on.