The Rotel A12 (60w/ch) is £699, true that is £100 more than the A11, but it has more power, and it has a DAC with Digital Inputs. Certainly a DAC with 2xOptical, 2xCoaxial, and 1xUSB-PC is worth the extra £100.
And you you really want Bluetooth, that can be added to any amp for less than £50 -
So new Michi at the top end and this A11 range at the bottom. Does that mean something new in the middle soon? The 15 series has been out a long time now with no updates. Perhaps a replacement for the 1572 and 1592 integrated amplifiers?