"Torchwood: Series 4" Subtitle And Details!

"Series 4" of the sci-fi "Doctor Who" spin-off is finally coming together with a brand new subtitle and new character details. The new series is gonna be known as, "Torchwood: The New World". The new name kind of makes sense with the move to different countries.
There has been news released on three new characters. The are as followed:
Rex Matheson (CIA Agent)
Esther Katusi (CIA Agent)
Oswald Jones (Convicted murderer and paedophile)
No news has been released on who has been cast for the roles, if anyone has been or not.
Various websites and magazines have discribed the new series as an American reboot to the UK version, even though three of the original cast members are returning to their roles, John Barrowman, Eve Myles and Kai Owen. Creator and exec-producer, Russell T. Davies has announced, "It's very much the next step. It's not a new version, it's not a reboot. We're simply moving countries." But the show's second exec-producer has came out and said that the new series is being, "absolutely rebooted to welcome in a new audience".