does LEDE plan to support r9000 device ?
Probably not very soon, as it runs a new platform (Annapurna Labs AL314).
Discussion also in Annapurna Labs Alpine platform build support
I'll be searching the forums until then
Until someone willing to put in time gets their hands on one of these I doubt that there will be any progress.
Also for 60GHz AD card I dont think that there is any open source driver at all.
DD-WRT looks to have everything ported to 4.14 so there should not be a lot of work.
Is anyone willing to take a crack at this? I can make a donation to motivate someone.