Last update (a bit ago) said they were aiming for international CBT testing during the summer of 2015.
Just to update the community on this game in case anyone else has been following. Founder's has launched on Steam while the rest of the game is going F2P in April. http://store.steampowered.com/app/372000/ Apparently the servers are cramped at the moment and my Blade and Soul subscription isn't getting enough love as it is. I'll likely try it out when it goes F2P if anyone else is interested then.
I've been playing this since the paid-for launch. A few quirks here and there, but otherwise really enjoying it.
Was just looking at this. Nexon seems to have their hand in this... as well as Riders of Icarus. From what I've been told Nexon is huge in turning games into pay-to-win. So I'm a little worried about that; we'll see though. Don't want to see a game start off good then go to pay-to-win like BnS and every other Korean free-to-play game basically.