This video popped up in my feed, I've seen so many of these factory tours but you never know when there might be some new insider info gleaned and at the end of the video Will Butler Adams said a 7 speed is coming.
I also recently got a Brompton survey asking about satisfaction with the Brompton gearing. Not sure what the timeline is but seems like it's in the works. I wouldn't hold off on a purchase of a Brompton because of it since it should be retrofittable but interesting none the less!
by edtse88