The iPad mini will not be a replacement for the current, full sized iPad - Its a completely different product. It's like saying that you'll shoot yourself if they bring out a new MacBook air soon because you've just purchased a MacBook pro...
I think he was talking abut the rumor of a Rev 2, 3rd gen iPad ... there's been some rumors talking about an updated version with the new connector, and some way off the rails talk about an A6 version way before the regular revision cycle.
I don't think either are true, but a mid-cycle major SOC change is HIGHLY unlikely.