...but do not believe the electric starter demand will be a factor.
Neither do I.
The 787 is so far ahead, design-wise, of any other jet transport airplane, Boeing has absolutely nothing to worry about...late first flight, or not.
Lets face facts here.
Boeing (and Lockheed, on a smaller scale) have absolutely led the design criteria as regards large jet transport airplanes.
Comet excepted...but then they had their problems as well, as we all know, now.