Yes, I know, you're feeling all constrained by that paltry 300 mbps of bandwidth offered by 802.11n wireless routers. The next wireless standard, called 802.11ac, will offer three times the throughput for multiple HD video streams and more, and it's coming next year.
802.11ac will transmit wireless signals on the 5Ghz band, which handily avoids things like wireless phones and rogue microwaves. This means less interference for better throughput and longer range. Increased signal strength provides more power for punching through walls, too. The real difference, though, is the bandwidth: you can expect 802.11ac to triple data rates over 802.11n, up to a maximum of 1.3 gigabits per second. This is great for video streaming, for sure, but it's also good for mobile devices, since tripling data rates means cutting the time that your cellphone (or whatever) needs to have its antenna powered up by a third, saving battery life.
Technically, the 802.11ac standard is still under development, but you probably remember how long 802.11n was in development or draft mode for, and how that didn't stop anyone from stuffing it into consumer products anyway. 802.11ac is sort of in the same boat: it's probably going to be finalized middle to late 2012, but you can expect to see the first round of products offering 802.11ac connectivity early next year.