Man I'm grateful for anons like you who can figure this stuff out. Brilliant minds.
But you lost me after the first 3 lines! Which makes me even more grateful for your skills.
I see is one of the many drops that had multiple meanings, most of which have been red herrings almost every time. That's why Q kept saying these people are stupid.
So we All thought the entire drop had to do with Cassidy when in Truth, Cassidy was Our Plant.
After reading your post, I think you're right, the Surprise Witness will be For the Truth, which means our side!
Watching this play out reminds me of The Sting. You have to have a very highly specialized Team of people with various skills to pull off. You're all in.
What does a good movie have? Good actors. I have Stories! Seriously.