Apple did something similar to this in 2012 with the introduction of "the New iPad" (aka the iPad, 3rd gen with retina display.) Six months later - breaking the year-long release cycle for the first and only time - the 4th generation was released and was much improved. I'm one of those suckers who bought the 3rd gen. Never again.
How come I never thought of this? That we don't have to wait a year for this to come out. This would be a really good thing. People shouldn't be so worried.