The successor of the current GoPro Hero3+-camera slow-motion videos at a 1080p resolution with 120fps and 720p at 240fps. That would appear to be from a rumor about the new small camera. GoPro has not confirmed yet.
The GoPro Hero4 would be a 13-megapixel camera with a lens that is made for the creation of images in the dark. The Hero4 also has built-in support for wi-fi, hdmi and usb. The camera will be in the summer of 2014 in the sale will be going for a price of only around 250 euro. GoPro has rumour has not been confirmed or denied.