She’s not only sitting up, but she’s the one holding the camera.
An update from Dianna.
It’s my ardent hope that she will recover! 
Wow! Any improvement is good, but that’s a dramatic change from the way she was early on where she wasn’t even coherent!
First physics video in 3 years, posted 10 days ago:
I saw that one, it was posted last week in a different thread.
I’m glad she’s back and seems to have, at least for a few minutes at a time, enough energy to shoot a video (plus whatever goes on behind the scenes to make it happen). Hopefully she keeps improving.
I follow her on Instagram. She was doing quite well 6 months ago, even getting outside for walks with her husband. Unfortunately, she slid back again not long after and had to return to bedrest. Definitely happy to see that she was able to complete her first video in years.