If there's a type of show that doesn't really have any reason to think about "seasons" it's game shows, and if there's a specific game show that should care even less, it's Wheel. For all the difference it would make, they could be taping ten or heck, fifteen shows a week practically year round and build up an inventory that would last for years, and unless Vanna got hit by a truck in the interim, hardly anybody would know the difference. I just see very little reason to get worked up about the Holy Sanctity of the "season" concept being tampered with.