I've been away from CFP for 5 years or so, and haven't kept up like before. It seems like progress has slowed, or stalled. The turbo hype is rampant, looks silly for the pro light class, Luminus LEDs are filling in for Cree. WTH? My Fenix HP25R V1, now several years old, feels alone and lonely, holding 1000 lumens. I returned, interested to see progress and what design changes had come with it, and found little.
Cree's website shows a timeline of milestones, with the last mentioned LED advance around 2018. After that, they feature progress in horticultural lighting. Sounds like they're focused on spectrum analysis for boosting plant growth rather than achieving new efficiency standards.