I finally got a chance to give the 2015 Forester 2.5i Limited a good run. After ~200 miles at 70-80 mph, this is the result. The tank was refilled with ~20 miles left in the trip, but with the trip meter not reset.
I'd see 22.5-23 mpg on the same trip this time of year in my 2009 Forester 2.5x Limited. Consider me impressed.
I should really get around to doing a full review of the entire fleet soon.