I just don't see the need for SDC to partner with McDonalds. I do think an SDC eatery of some kind that serves supper only would be a nice addition to the OMP. But a chain?...nooooo
Besides, McDonalds wouldn't go for "second billing" at the exit of a park anyway, they would want to be front and center.
Some of the slow OMP shops would be a nice location for an SDC hot food location of some kind. I can't remember the last time I saw anyone in the John Deere or Irish shop (or whatever their official names are).