In recent news (past few weeks) 802.11ac has been popping up quite frequently.
802.11ac is the emerging standard for gigabit wifi. The standard is still a draft, but just like 802.11n, there are already products that support this “draft” standard. 802.11ac will support up to 6.9Gbps (and in lesser forms down to 433Mbps). It is sometimes being marketed as “5G” as the public has become used to the term.
Higher bit rates for 802.11ac tend to use multiple (up to 8) antennas to get the full bandwidth.
Broadcom announced a full family of 802.11ac chipsets at CES.