The Fighters announced who all is coming today. I've translated the list (and hopefully gotten all the names correct). There's a couple notable newcomers to the team on the roster - former Orix Buffaloes ace Chihiro Kaneko and former CPBL star Po-Jung Wang.
There are also three KBO teams training in Arizona this year. The KT Wiz and the afore-mentioned NC Dinos will be training in Tucson from the end of January until March 8th. KT will be at the Kino Sports Complex while I assume that NC will be Hi Corbett Field but I don't know that for sure. The newly renamed Kiwoom Heroes (formerly Nexen) will be in Peoria from January 30th to February 18th and then in Tucson for some period of time afterward.
In addition the defending KBO champion SK Wyverns will be in Vero Beach, Florida from January 30th to February 24th.
I don't think there's a CPBL team training in the US this year but I could be wrong.
Thanks to MyKBO.net for the information on where the KBO teams are training.