Unless I miss my guess the "Wild Weasel" mission will be the very first mission assigned to the armed stealth UCAV's like Boeings X-45A. OTOH, it would be a good insurance policy to by another wing of F-15E's. The Echo seems to have all the qualities you want in a strike fighter (bomber, really). Range, payload, weapons-type, some ACM capability...where else are you going to get that? Not the JSF, for sure.
Re: Wild Weasel: Wasn't there an article recently where the F-18F model was being modified to replace the EA-6B? Seems like the Super Hornet would inherit the Wild Wesel role.