Just what will those products be? Your guess is as good as ours. EA Asia president Jon Niermann was quoted saying that the studio will work on both "new properties and powerful EA franchises." This is not the first time EA has set up shop in Korea. Back in January the company announced plans to open a studio there to work on online versions of the NBA Street and Battlefield franchises.
Add that to the big western MMO products from the company (Warhammer Online and Star Wars: The Old Republic), and it looks like EA is pretty keen on the genre these days.