Most likely the snack basket will be going away in 1st for East. There is nothing of the sort on the West side and when there was, it was eliminated due to waste, cost and space. I would look for some food items very simlar to what West currently offers with some flexibility by market, time of flight and competition.
Like it or not, when HP talks about low cost, it means "low cost", which essentially means as little waste as possible, keeping catering expenses as low as possible while still offering first class seating, with food. When HP says "low cost, full service" they are referring to the amenities of advance seat assignments, first class seating, clubs to relax in, web check-in, food is not the driving factor here.