Unfortunately the lag problems with Brink are still ongoing. Bethesda has posted the following on its blog regarding the issue:
“We have been working on updates for Brink to address the lag issue that some people have reported they were experiencing.
In the meantime, we have made a configuration change for 360 users (which will be available to the PS3, once PSN is up) that alters the number of human players when matchmaking for “Campaign” and most ‘Freeplay’ modes to eight total human players. This new configuration will allow those connecting to and hosting matches (particularly those with lower upstream bandwidth) to more reliably find and connect to quality hosts via the match-making process – resulting in less lag and more fun. This change is being rolled out today and will be available worldwide.
For players who haven’t been experienced lag, we’ll still support 8v8 on all maps via a new ‘Big Teams’ configuration in Freeplay, and through custom settings in Private matches. There is no download required for this update and it will be available automatically the next time you log in to play Brink and launch either campaign or standard Freeplay matches. This should allow players new to the Ark as well as veterans to find quality matches suitable to their preferred play style.”
For supporting Brink players will be getting the first batch of DLC for free. Due in June, it will contain new maps and content.