Extremely sad. Especially when they were offered $750 million by Citizen not long ago.
I've found the watches to be a joy to use, to develop for and the community is sensational. I have no hopes it'll survive as is with Fitbit.
If you have a Pebble and are involved in any way in it's development, I strongly recommend you have a look at Gadgetbridge https://github.com/Freeyourgadget/Gadgetbridge