Question: (Possible Spoilers?) At the end of S3 E1 Rick threatens Morty in the garage, and gives away a possible ending to the show, or at least some sort of last season indicator??

Ok so, I feel like this is already out there. I looked it up but couldn’t find anything on this specific instance. Could someone please let me know if I’m onto something or if this is well known in the community. At the end of S3 E1 Rick corners Morty in the garage, basically saying he’s taking over the family. But at the very end he says “ I’m driven by finding that McNugget sauce, Morty! I want that “Mulan” McNugget sauce, Morty! That’s my series arch, Morty! If it takes nine seasons, I want my McNugget dipping sauce, Szechuan sauce, Morty. That’s what’s going to take us all the way to the end, Morty. Season - - Nine more seasons, Morty.” (Rick and Morty S3 E1: "The Rickshank Rickdemption" 21:50-22:11) So My question: Is this Rick saying that in nine more seasons (S12) he is going to get this sauce and this is his real priority? He says that is what will take them all the way to the end, does that mean the last season or episode possibly? That when we see him get it we will know it’s coming to an end. Again, this may already be out there and I just haven’t looked hard enough please let me know lol.