Here are some at the changes they will be implementing based on community feedback from the Open Beta.

Conquest Game Mode
Capturing the objectives AND getting kills will both contribute towards the final score of a Conquest match.

Rush Game Mode
We are making tweaks to the game mode as we speak with your feedback as the backbone to the entire process.

Other Elements
We're also looking into balancing other elements, including the weapons and vehicles. The Light Tank, which is a bit too effective in the Open Beta, will definitely receive some work, and we agree that Horses can take a few too many rounds at the moment. We've also learned through the Beta that you guys need more tools to deal with vehicles earlier, which we'll definitely look into (including a Gadget for the Support class which should help neutralize powerful vehicles).