Apple has started to curb the amount of MacBook Pro laptops that it currently has in stores with many nearly out of stock, which nearly always indicated that a refresh of some kind might well be immanent. So if you are thinking of purchasing a new MacBook Pro it might be worth holding fire for just a little while longer.
Other indication that suggest a refresh is immanent is that new references for all MacBook Pro models have appeared in Apple’s inventory system for the 13 inch, 15 inch, and 17 inch screen sizes.