BT will be launching the BT HomeHub 5 later in 2013, following hot on the heels of the HomeHub 4. The BT HomeHub 5 will bring with it support for the latest 802.11ac Wi-Fi protocol, as well as including Gigabit Ethernet connections to give you faster home networking.
http://www.pocket-lint.com/news/122239-bt-homehub-5-wi-fi-ac-support-gigabit-ethernet-the-partner-for-your-300mbps-infinity-broadband
Makes BT infinity look very promising...