According to our sources, we now know which providers are "confirmed" and "set aside" that will host Battlefield 4 PC Game Servers.
The "confirmed" list is as follows, in alphabetical order, and may be subject to change without warning:
Here is a confirmation post from DICE:
http://battlelog.battlefield.com/bf3/news/view/pc-game-server-providers-for-battlefield-4/
4NetPlayers.de
NitroServ
Multiplay.co.uk
MyInternetServices
Interactive 3D (I3D)
Gameservers.com
Gamed.de
NFOservers
Hypernia
Gportal.de
Fragnet.net
AusGamers.com
Rocketblast.com
ForTeam.ru
Trinity Games
Here are the list of GSP's that were "set aside" for future debate:
Art of War Central
Branzone
Gaming Deluxe
Hosters.at
Iberbit Servers
Low Ping Game Servers
Rackage
Here are the list of GSP's that are currently "unknown" about hosting BF4 servers:
Brainstorm Servers
End Of Reality
GameHosting.co.uk
Leet Servers
LowPings.com
My Internet Services
There are currently two reddit articles about this:
http://www.reddit.com/r/battlefield3/comments/1mftvu/how_will_your_bf3_community_be_impacted_by_denial/
http://www.reddit.com/r/battlefield_4/comments/1mbvh4/bf4_limiting_server_adminowners_options_on_where/
There is also a petition going on to get more GSP's in the confirmed list:
https://www.change.org/petitions/don-t-slim-the-battlefield-4-gsp-list
I hope the list gets bigger, but, who knows.