I just hope your "evil predictions"

will remain as your gut feel, at the least until the end of Broadwell era. My gut feel is that Broadwell-M processors will power the rumored really MBA (11" & 13") as well as the rumoured (early/mid 2015) 12" rMBA.
In early 2016 (or maybe even late 2015), we will certainly see the Skylake (remember that Skylake will be Intel's "tick") in the 12" rMBA, but I can't really predict anything for the 11" & 13" members.
The answer (prophecy) to this last case will partly lie in the features & specs of the rumoured (early/mid-2015) (???) 12" rMBA. The (late 2015/early 2016) 12 " rMBA will need to carry improvements over the forthcoming Broadwell-M based design (the CPU/GPU, battery life, maybe wireless charging etc.). Now to accompany this 12" baby, what will Apple add? Any 11" or 13" addition (Skylake + retina screen) will need have a too close resemblance with the 12" rMBA and just for that sake, they should be eliminated... If so, may we expect a re-designed, re-cased 14" rMBA (with Skylake, and still achieving the battery life of the Broadwell based non-retina 13" MBA...), in (early to mid) 2016?
If yes, will Apple drop the 13" rMBP with Haswell and have the 15" rMBP versions plus a totally new (actually a re-incarnated) 17" rMBP with 32GB RAM & 1 TB PCIe flash storage and say with 8-10 hrs. battery life? This 17" may not remain as a wishful thinking; it will be in relatively high demand in most markets (as a portable desktop...) and by 2016 Apple should have its vendors available for ample supply of 17" retina screens...
And Maybe these 2016 15" & 17" will have a new casing, but (hopefully) decreasing the battery life achieved with Broadwell. (I'm assuming the 13" & 15" rMBP will exist in the current casing, with Broadwell; launching in mid-2105)
IMO, one have to think MBA and (r)MBP lines co-existing, but not overlapping one another.
???? ????
