We have a lot of possibilities for technologies in the future. These possibilities are divided into eras.
21st Century Edit
2020 - 5G for phones
2023 - Hypothetical planet nine is discovered and named.
2025 - Manned exploration of near earth asteroids i.e Cruithane.
2027 - Common probes to Uranus
2029 - High orbit space station
2031 - Highly efficient radiation protection
2032 - Moon bases
2033 - Manned exploration of Mars
2036 - Common probes to Neptune
2039 - Airship probe to Titan
2042 - Possibility of methane based lifeforms on Titan
2045 - Extreme pressure protection for deep sea diving to the metallic oceans of the gas giants.
2048 - Terraforming of Mars is starting.
2051 - Station at a Lagrange point.
2054 - Asteroid mining companies forming
2059 - Large Martian colonies.
2060s - Public spaceflight is common
2063 - Civilian space hotels
2067 - Cryogenic freezing has been perfected.
2069 - Moon landing anniversary
2071 - Civilians on Mars.
2073 - Manned mission to Venus
2074 - The first space elevator is operational
2075 - Manned mission to Jupiter's moons
2078 - Possible discovery of life on Europa
2081 - Nano fibers / wires used in clothing to make very good thermal padding, resulting in lighter EVA suits
2087 - Probes to the Kuiper belt
2090 - Manned mission to Mercury / Vulcanoids
2095 - Probes to the Oort cloud
2097 - Large civilian population on Mars
22nd - 23rd centuries Edit
2101 - Start of the terraformation of Venus
2103 - FTL technologies becoming a reality
2108 - Probe to Alpha Centuri
2113 - Planetary colonies are gaining independence from Earth.
2114 - Manned colonization of Saturn's moons (Mainly to study methane based life)
2127 - Probes to exo-planets
2136 - Possible discovery of microbes on exo-planets
2141 - Asteroid Terrorism
2157 - Supreme weapon systems
2165 - A large chunk of Mars is now habitable
2178 - Phobos and Deimos are now large mining colonies, supplying Mars with minerals
2182 - Martian space elevator
2187 - Venusian space elevator
2190 - Manned colonization of the entirety of the solar system, humans have entered the Galactic Stage
2201 - Manned colonization of exo-planets
2200s - Superhuman powers
2220s - Guns are made useless
2250s - The human race is adapting to different enviroment
2270s - First definite contact with extra terrestrial lifeforms.
23rd - 31st centuries Edit
2300s - Rich businessmen buy whole solar systems to build colonies. Some of these aren't accessible at the current technologies
2400s - Humans are adapting to different environments
2500s - A large chunk of multiple terraformed planets are habitable.
2600s - Force fields are now in military use
2700s - Intelligent alien races are in contact
2800s - 3000s - At some point in this period, interstellar colonies are having interstellar wars. The result is multiple habitable planets are now destroyed by multiple weapons such as planetkiller arrays, asteroid redirection and global disasters.
2900s - Diamonds are worthless, now 55 Cancri E has now a permanent mining colony.
3000s - The solar system is privatized, with a Dyson sphere around Sol to power a system-wide force-field and toll booths
3rd - 10th Millenniums Edit
4000s - Colony ships are now bringing civilians to 'Rimworlds' or Earth-like planets. They tend to find destroyed cities, structures and information from precursor races that have destroyed themselves.
4500s - The human race is becoming unrecognisable from today
5000s - Mankind is type 3 on the kardashev scale
5500s - Humans in this era would be very diverse and split up
6000s- Mankind is reaching the Andromeda galaxy
6500s - Technology is being spread out
7000s - 10000 - Sometime here, Earth will be utterly wiped out and / or rendered as unnecessary
8000s - Mankind is becoming a type IV civiliation
8500s - Humanity is dividing into either the omnipotent civilization or a large community or coalition of other races like in No Man's Sky.
9000s - Type 4 enters a hive mind in between space-time, whereas the remaining type 3 worships them as gods.
10000s - A large 'ark' is constructed to house the remaining humanoids. It would be similar to the Borg cube from Star Trek or Cooper Station from Interstellar and would be planet sized and eventually, the humans would stay there, forever.
10th Millennium + Edit
12000s - Multiple 'arks' are constructed, each to house a different variation of mankind.
14000s - In this period it is possible for some of these 'arks' to either meet and exchange technologies, but they would feel like different species to each other
16000s - The type 4s are converting into type 5s, controlling Universes and manipulating space-time. Multiple arks are converting into type 4s.
20000s - The omnipotent type 5s are reaching their ultimate state
25000s - The Universe mankind is in when this was written is now taken over by these arks, that how made their land like countries, making every planet on their terraformed. This universe will now be referred to as the Aleph meaning the one.
30000s - The type 5s are now type 6s.
40000s - A huge intergalactic war has raged between 2 of the largest 'countries'
50000s - The arks are now a religious symbol
70000s - The 6s have reached type 7s, who now control the multiverse.
100k - Earth and the local cluster of stars are now fabled as legends.
200k - The few remaining arks after the war are colonizing other galaxies
300k - The arks are now spread around the universe.
500k - The gods or the omnipotent ones are now type Omega and control EVERYTHING. This will be the final state of the humans
What happens next Edit
According to everything humanity has ever learnt, we have no idea. The arks will spread out and eventually colonize other universes. Wars will rage out and then we don't know. Universes will be created and destroyed.