So he’s expecting a fusion gain over 5 sometime around 2017, when they convert to D-T: https://s3-us-west-2.amazonaws.com/pnwmsnw/NIAC_PhaseII_FDR.pdf

That should help funding efforts, if nobody else achieves it before then.

And then a full-scale ground demo in 2020, a space mission a couple years later with a 40x gain, and 2030 for a manned Mars mission with a 200x gain.