Don't know about the far future but in University we were discussing this topic and apparently when Steven Spielberg made Minority Report he got together scientists and tradesmen from the top of every field to give their best estimates as to what we'll have in 25-40 years and if you watch the movie that's what they came up with. (ex, jump jets, jetpack, the autopilot and vertical highways and cars and the personalized ads, holograms, just not the seeing the future thing)As for the far future we have a few paths to follow, 1. we overpopulate and fail to achieve colonization and starve to death. 2. We blow ourselves up/create a T-virus-ish plague. 3. We destroy our environment and Earth turns into a second Mars. 4. We do any of the first 3 but overcome each of them somehow and I would imagine we could evolve into either preferably some sort of United Federation like in Star Trek, or some facist government like Starship Troopers, Or paramilitary like Mass Effect and Halo. I don't want to get to specific on dates (like back to the future) because they did that in the 50's-80's and I don't see any Flying cars on the market yet, but since I believe NASA is working on an anti-matter drive atm I would imagine we could colonize Mars whenever we finish that plus how to keep the sun's Gamma (and other)radiation from killing the crew in a colonyship.