Miguel Costa

The best part is that it isn't even over!
The Bar now has proof that Chuck indeed has it out for his brother (via his meltdown under oath), now Kim and Jimmy can show that Chuck was entrapping him. The Bar believes Chuck has a mental illness, and will likely buy into Jimmy's story. They claim the tape Jimmy destroyed was "evidence" but they made a copy, which is what was destroyed (a copy can't be evidence). Everything points to Chuck getting absolutely destroyed in the next episode or two.
Then that's what I believe will happen: Jimmy wins the Bar hearing. Chuck becomes the subject of the hearing (or a new hearing) due to his mental illness causing poor judgement and trying to entrap his brother to try and make him lose his license. Chuck loses his license. Simultaneously to Chuck losing his license, things are progressing with Kim and Mesa Verde, she has to make a decision, her career or Jimmy. She looks back on the things Jimmy has done and acknowledges that he can only hurt her career in the long run. She cuts ties with Jimmy, and Jimmy goes to check on Chuck to find him dead at home having killed himself.

Saul Goodman is born.