Sept 2019 was suppose to be the conclusion of the FVL assault tech demo phase. It looks like the Marines are sticking to that with their AURA schedule of having RFI response in by Jan 2020. Defiant will obviously have no positive influence on whatever Boeing submits.
Meanwhile the V-280 is racking up flights doing demo’s or training with a lot of low altitude fully converted high speed passes and helicopter mode agility maneuvers. Quite impressive relative to speed, low acoustic signature, and looks.