The official Dark Souls website in Japan has posted details of an update for Dark Souls 2, which is set to bring the game to version 1.03. The release date for the update has yet to be confirmed, although we're certain it won't be long given that there's already patch notes for it.
Expect more information about the patch to drop for the game's international release within the coming weeks.
The update contains various fixes relating to the game’s single- and multi-player aspects, and reads as follows:

Successful Online coop with white / small sigh stone will now revive you back to human
Bug where entrance door to Drangleic Castle did not open has been fixed
failing to create multiplayer session no longer disables use of online items such as white soap stone
starting boss fight with Mirror Knight while summoning coop player no longer fails / cancel summoning process
death match error at the undead purgatory has been fixed
you will no longer be able to take off Covenant related rings while being summoned
bug which dropped items were not be able to picked up again due to the 'inventory is full ' message has been fixed
dialog will now pop up when you enter the coffin at the Things Betwixt
fixed bug where at certain areas blood stains, illusions and messages were not displayed
bug which location of object and item were reset has been fixed
display response time at character making has been improved
bug where angle of the tattoo chosen at the character making screen did not display correctly has been fixed
response time of start menu / bonfire menu has been improved
certain items not being available at the shops in NG+ and later has been fixed
summoned players no longer fall under the ground at Earthen Peak
bug which caused souls to be lost while equipping life protection ring has been fixed
bug which caused face icon displayed at the summon sign to be of different player has been fixed
Trophy icon for the Guardian of Fort(?) fixed
Controller now vibrate when guarding
equip menu info on dark magic has been fixed
bug which caused player to fall through elevator while using binoculars and casting spell has been fixed
The patch notes were translated by redditor FarneseVandimion. You can read the thread here.
