Microsoft source @MS_nerd, which has a history of reporting Microsoft leaks, says that the Surface 2 will be the successor to the Surface RT, but with a smaller 8.6-inch screen and an unspecified Qualcomm processor.

Following on from that and the source claims that there is also a Surface Pro 2 in the works, with this model apparently offering an 11.6-inch display and an AMD ‘Temash’ processor (the rumored successor to the 'Hondo' tablet chip).

However, perhaps most surprising of all is the suggestion that Microsoft is preparing a 14.6-inch tablet labelled as the ‘Surface Book’. This model will reportedly feature an Intel ‘Haswell’ chip using 22 nanometre (nm) architecture.