Let's face it: The TCR ruleset is in the toilet. Series are being cancelled left, right, and center, the models the ruleset is based on are being phased out by the market, the FIA scrapped the very idea of a TCR World Championship, and we're still waiting for that god-forsaken TCR World Ranking Final.
So, how will it die? There is a very likely way this could happen: the manufacturers. After Lynk & Co quit and Audi started focusing on Formula 1, Hyundai, Honda, and Cupra are the only manufacturers invested in the series.
My guess? Amidst the decline, two of the manufacturers will quit, possibly Cupra and Honda. At that point, it'll be the same thing that happened to DTM: the remaining manufacturer will be left on their own, turning TCR into a spec series.
This will lead the FIA to get rid of TCR and create a new ruleset as a replacement, much like they created the Le Mans Hypercar when Toyota became the only LMP1 factory team. This might possibly be an SUV-based ruleset.
What do you think?