Mars One is an initiative to migrate small groups of people to Mars, using currently available technologies. The current schedule is to land the first group of four on Mars in 2023, with an additional crew landing every two years.
The design team has been working on the planning in 2011 and has recently sought publicity for their plans in order to secure funds. The power of this mission concept is that it uses technologies which are available today or in the near future, such as the falcon heavy and life support that is currently in use in the ISS.
With ambassadors as Prof. dr. Gerard ‘t Hooft (nobel prize winner), Mary Roach (writer) and Prof. dr. ir. Ambrosius (chairman of Delft Technical University’s Astrodynamics and Space Missions faculty) the group aims to be both visionary and feasible.
I wish them the best of luck. I hope to hear more from them soon. Go check out their website: http://www.mars-one.com/