As Kotaku notes, EA and Nexon have been working on the project for several years, though it just announced the team-up and its plans to launch for Asia last year. But now it appears the companies have taken stock of the changing winds of the games market, finding that player testing wasn’t going well.
“It is true that Nexon and EA have agreed to cancel Titanfall Online under a business decision. […] After much deliberation, it was decided that reallocating development resources to another project was better for the company.”
Our condolences to fans and developers.