I would think that a E+ product would be more than extra pitch. Most airlines offering E+ have slightly wider seats, more pitch, and improved meal service. CO could do the same on its 777's/787's: 2-4-2 (versus 3-3-3) with 36-37 in. pitch and, say, a Y meal on BF china. Most airlines offer E+ pax a distinct menu, separate check-in, and amenity kits, too, but if CO wanted to keep it very simple they could do what I suggested above and accomplish 80-90% of the E+ objective.