From the stream;
He partially redid the pose of the Vera and Bigfoot scene and made some progress.
He also started showing some sort of "Bone's Verse" timeline, which is meant to be how all the games he has (curent and planned) are connected, including characters. He also stated to be working on some sort of family tree, it seems like he is trying to expand on the game's lore and such. I only took one screenshot of it and wasn't very interested in getting more simply because its obvious to anyone that whatever content he shows there will have zero relevance for years to come (the time required to finish his two games before he moves on).
For those who struggle to read the text on the image (or who don't speak English) I will write down what it says below, I will also add my own notes alongside each to provide more information:
Year 2015: Martha Williams divorces Thomas Deluca (After 15 years) - This is Martha from the game
Year 2018: "Bones' Tales: The Manor" Takes place. - The game happens during this year.
Year 2019: Marian Boursaw Dies at 88 - This is an unknown character, 'Boursaw' is Doyle's family name.
Year 2019: "Bones' Tales: Protect & Serve" Takes Place. - This is a planned future game with Officer Claire.