"This isn't a phone, or a new app, or new headphones - it's not a consumer product at all. Rockets are far too expensive; space colonies are more expensive still. If Musk doesn't announce financial backing, it means the presentation is meant to convince someone - probably NASA - to fund him. But this is an extraordinarily awkward time to try to win over money, since one of his rockets blew up earlier this month."
Get Ready, Elon Musk Is About to Outline His Plan to Colonize Mars, Popular Mechanics
"The new Mars shuttle and BFR are only design ideas that have been teased by SpaceX, so it remains to be seen whether a concrete plan to develop one or both of these new spaceflight systems - or something completely unknown to the public at this point - will be revealed during Musk's speech."
Elon Musk to discuss his vision for how he plans to colonize Mars, Washington Post
"Then in 2020, SpaceX would fly multiple Falcon Heavy rockets, he said in an interview with The Post earlier this year. The goal of those missions would be to perfect the difficult art of landing large objects on the Mars surface. If everything goes according to plan, SpaceX would launch a new, more powerful rocket in 2022, and then with crews in 2024."