Tauchman had to be added to the 40 man when he was called up so I don't think he has any options as he was on a minor league deal. He played in Korea last year but he's eligible for arbitration. According to this he has no minor league options:
Cubs BCB After Dark: Will Tauchman hang around? - Bleed Cubbie Blue He played a big part in getting into the playoff picture but not sure with PCA Canario and the other OF prospects knocking on the door if he's needed anymore. Guessing it will depend on what they do in free agency especially with Bellinger as even if Belli is resigned and moved to 1B regularly he still will likely get some starts in the OF from time to time too.
Wisdom - no thanks time to move on. He's going to be 32 next year and I would not be against finding a veteran player upgrade at 3B even with Shaw in the fold as can't assume he'll be ready to hit the ground running sometime next year. With the DH it gives options where can still have both bats in the lineup when needed. Madrigal and Morel (even with his defensive issues) and could look at adding one of the Iowa guys to the 40 man like Bote Slaughter, or see if Vazquez could be a utility guy as I was impressed with his glove when I've gone to I-Cubs games this year. I wouldn't mind making a big splash and go after Chapman in free agency or kick the tires on a 3B in a trade either. If Shaw is the real deal then they'll find a place for him regardless.
Mastrobuoni - if he still has options left no harm in leaving him in Iowa for depth but if the 40 man roster spot is needed he's expendable.
Going to be some interesting roster decisions after the season for sure especially with needing to add some guys to the 40 man to protect them from the Rule 5 draft so some of these fringe guys you mentioned could be the odd ones outs if there is a crunch. Going to be some guys on the 40 man like Burdi, Cuas and Heuer that decisions will need to be made on and maybe even guys like Rucker, Thompson, and maybe Estrada where they've struggled when in Chicago but looked good at times in Iowa if they need a change of scenery or are they going to be worth holding a 40 man spot for in hopes they finally figure it out.