Reportedly, Matthew McConaughey has officially signed on to star in a new spin-off based on Yellowstone. A spokesperson from Paramount shared, "We have no news to report. Kevin Costner is a big part of Yellowstone, and we hope that's the case for a long time to come. Thanks to the brilliant mind of Taylor Sheridan, we are always working on franchise expansions of this incredible world he has built." Chris McCarthy, The ViacomCBS President, said they will be moving forward with this spin-off starring Matthew McConaughey with or without Kevin Costner's involvement. What do you think about the addition of Matthew McConaughey joining the Yellowstone Universe?