I would agree with opening late. After the morning and after lunch/afternoon rush, people usually bunker up with their books/laptops and stay for hours.
Pet friendly would be great, or at least allow an owner to bring their pet in to grab something then leave instead of leaving them in the car.
Free delivery within a certain distance if they reach a certain $ amount? Collaborate with companies taking care of their coffee runs? Just thinking out loud here.
Will it be all to go cups? Standard bring your own mug discount, daily specials, RS discount
waffles...yummmmm......