I read the issue, and the joke's on all of us. it's a look into the future, but in the transition from present to future, Archie is seen taking the left path of a break in the road, "saving the left one for later". so, sure archie and veronica will probably get married, then the writers explore another future where archie chooses the right path. maybe eventuially archie decides that he doesn't really want to choose after all, then we're back at status quo.
all the while, archie comics makes a killing off comic sales for its storyline.