IMO they should go forth with both 12 and 10.6 although they must slim it down and go to 16:10 over 16:9. This is all dependent on achieving enough sales to be self sufficient at some point in 3yrs.
If you look at the Intel processor line, even within the i5 only, I don't see them ever eliminating processors that will use more power than what can be fit into a tablet form factor, not even a bulky over sized one. I think its time to let the saucer eyes admit reality even if marketing continues to dangle white unicorns before us. Can you replace your laptop??? Do you mean one that is 4 years old and is due for replacement, absolutely! Do you mean, instead of the latest model on a performance only basis, notwithstanding other considerations of flexibility and weight? Replacing every model year over year has never been a realistic service model in this industry.