What do you hope is in the revised edition rule book? Updated rules? Clarifications? Eratta? New rules? New Fluff? More Fluff?
I think it would be cool if the rulebook itself had stats for 3 basic squads, 2 walkers and 1 hero for each major faction (meaning all the base squads, walkers, heroes from the old core set, plus maybe for the French, Russian, British, Italian and so forth) but that is probably too much to ask for.