This is probably optimistic.
Depends on where you live i think, 1Gbps connections are allready available where i live. at around 50-80 euros / month.
There just isn't a great need for it yet, (100Mbps is enough for pretty much everything a normal user does). but yeah, 1000Gbps will not be "average" anytime soon.
1080p is already the most common resolution. I expect it will remain so for a while with 1440p IPS panels starting to become prevalent in the high end. I know I'm looking at one of these bad boysin the near future.
yeah 1080p will remain dominant for atleast a few more years, they are optimal for HD video and are being mass produced which pushes prices down on them so if we're just looking at the average mid-high end gaming PC then it is likely to use a 1080p monitor in 2-3 years as well, the next good step for the average consumer(Who most likely will still want to watch 1080p vidoes at high quality then) would be 3840x2160 (Those monitors should be available at the high end by then but are unlikely to drop enough in price to really become common)