The 1.2 patch is now live and the servers are up; as usual for a patch day Conquest is disabled but will be active again tomorrow (3/17). Patch notes are here.
Patch 1.1 is now live on the GA servers. You can find the notes for the patch posted here.
Hi-Rez posters have also been dropping hints about some of the things that will be coming in Patch 1.2, which has been mentioned as likely arriving "in a couple of weeks" (source), including a 4v4 "Arena" mode with special maps, including a vertical map.
According to this post by Stew on the official forums, the 1.1 patch is scheduled to go live on Tuesday, March 2nd. There will be a downtime from 11am to 3pm EST (8am-Noon PST, 4pm-8pm GMT) in order to deploy the patch, and Conquest zones will not be active on patch day (to give people time to patch and familiarize with the changes). The post also lists the current patch notes for 1.1; make sure to check them out for details on the coming changes.
For those eagerly waiting, the "Global Agenda Live" client is now available for installation via the Steam client. While the servers are not scheduled to open for the beginning of the limited play period until later in the week, you can begin downloading the client (6.5 GB) now so as to be ready as soon as they do come up, and the ability to reserve your name once installed is also live (right-click game in list, choose Manage Game Account...).