Musk during keynote said “The future is vastly more exciting and interesting if we're a space-faring species than if we’re not,”. “Also we should never stop believing that future will be better than the past.”
To fulfill the plan company will focus mainly on one giant rocket, codenamed The SpaceX BFR. It will replace the existing Falcon 9, Falcon Heavy and Dragon models, to allow for the service of both the International Space Station and interplanetary missions. The timetable for Mars mission is imminent. Musk plans to land minimum 2 cargo ships on red planet by 2022, then using robotics it will begin setting up power, mining and life support infrastructure while confirming water resources and potential hazards for human survival.
SpaceX said it would first establish a base on the moon and BFR rocket will come back form moon without the need of re-fueling. For Mars mission rocket would launch from earth then another rocket carrying fuel would be launched and in Orbit they will refuel the rocket moving forward to mars. After refueling the rocket would continue its journey towards mars.
It’s a big freaking plan and Elon wants to make it a reality. Also Elon mentioned Earth to Earth transport system, which would make travel anywhere in earth in less than 1 hour. So all this is close to becoming a reality and in 7 years we would have a first man to step on Mars.