It's actually irrelevant whether he's trying, because even if he tried, he'd
fail. The microcode updates are required, as is the Intel Management Engine
(read: giant backdoor), and neither of them can be replaced because they are
cryptographically signed by Intel. Both of these deficiencies automatically
disqualify the librem from being supported in libreboot, and also disqualify
it from ever being FSF endorsed.
Even without those issue, there is still the FSP and Video BIOS, both of
which will require extreme effort. It will probably take years, and lots of
money, and even then, you'd still have the Management Engine and microcode
updates, so it still would not be supported in libreboot. I somehow doubt
that Todd's company is even able to pull this off, financially, and given
that his venture seems to be for-profit, I doubt that they would want to
(freeing that generation of Intel hardware would leave them with negative
profits).
Not going to happen I'm afraid. If you want something that is libre, look at
the libreboot project for starters. There are also several u-boot candidates
out there (Novena, for instance).
http://libreboot.org/