Eastmond, Wade & Armitage are all in the same boat now they are incredibly unlikely to be picked until after the RWC so there's no point in really talking about them as options. I think May is probably there now as well I'll be shocked if he gets recalled as anything other than for backup/warmup games.
Please, England has four matches before the next Rugby World Cup, and based on their current record I expect most of their back-line to be considered settled, dropped and pick up again several times before September.