Autobild, a German magazine, brings us some renderings of the future BMW X1 due out in 2015 and also creates their own take on the BMW X2. The internal code names of these vehicles according to the magazine is F48 for X1 and F47 for X2 respectively.
The rendering below shows the BMW X2. Autobild says that the launch date is scheduled for 2016. No official information has been released about BMW developing this vehicle.
Source: Autobild via Germancarforum