As far as the Rider goes, other than what you can barely make out in the picture above, nothing is known. The handset looks to be some sort of mixture between the Sensation and Evo, sporting something along the lines of a 4-inch+ display, with a possible qHD resolution.
Unfortunately, we know just as much about the Kingdom as we do the Rider. The Kingdom supposedly has a qHD display, that looks to be around ~4.3-inches in size. The Kingdom looks a little more like the Sensation, and may simply be a variation of the device destined to land elsewhere in the world.
Look for more information on the Rider and Kingdom to surface sometime in the near future.