Zam and Cad will get reworked. There's been some good feedback in this thread I'm optimistic they'll look at and take to heart. Maybe. Hopefully. I'm not naive, I promise.
I do agree about Zam always being useful, though. It's just that before, there were only a handful of us with geared Hunter teams even experimenting with bomb squads to even notice how fun she was.
The nerf to TD % really, really hurt her though. She's still useful and still fits into the new hunter teams...but her damage output has fallen through the floor.