Battlefield 4 is a little over a month away, and if you're eager to try it out, you aren't alone. Luckily you don't have to wait very long to get a look at the game, as EA revealed Battlefield 4's open beta begins on October 1. The beta will be available on the PC, PS3, and Xbox 360, although an exact run time is unknown. Given it releases around a month before the full game, a two week beta seems most appropriate.
EA also recently detailed the upgrade process if you're moving from a PS3/X360 to a PS4/Xbox One version of Battlefield 4, as well as Madden NFL 25 and FIFA 14, for as little as $10. The launch dates for those games are all the same, so you can pick up any or all three on November 12 for the PS4 (November 29 in Europe), and November 19 for the Xbox One (November 21 in Europe). All upgrades and unlocks carry over between the generations, so you don't have to worry about losing out on any progress.
The Battlefield 4 open beta should be on any FPS fans radar on October 1, and hopefully more details arrive before then so we know what map(s) to expect. Battlefield 4 arrives in full on October 29 for the PC, PS3, and Xbox 360.