Kinda bummed they chose to not do a Bad Company 3, but still a possibility we could see it in the future.
If you pre-order Medal of Honor you get early access to the BF4 beta that will be out in autumn 2013. As of now bf4 is only said to be for PC but we all know it will be on Consoles.
The last DLC for BF3 is in March 2013, which is around the time BF4 "should" be released. Not sure how thats gonna work. EA Announces Battlefield 4 - IGN "BATTLEFIELD 4" BETA leaked on Origin! - (BF4 Official Confirmed) - YouTube