If Pocket-Lint are to be believed....and as well BC isn't going to appear in the 40Gb model, then for £50 more, you get an extra 20Gb, 2 more usb's, a memory card reader and backwards compatibility.....there's no contest pricewise, seeing as £50 is nothing to pay for that particular functionality.
Maybe seeing as retailers are expected to take £20 off the 60Gb from £369 to £349, could they potentially throw in a game for the £299 40Gb pack...seeing as you can pick up Resistance/Motorstorm/F1 and other games for around £20 in shops and to the retailer, these games must cost them less than £10 now...so for the sale, they could potentially include a game for £299.
Prediction (June 12th 2017)
Permanent pricedrop for both PS4 Slim and PS4 Pro in October.
PS4 Slim $249 (October 2017)
PS4 Pro $349 (October 2017)
