I'm not really surprised by this "slump" because, honestly, what were people expecting to materialize in the course of about 3 months? We knew about the Wii ports and looking at the Japanese schedule I thought that was pretty obvious when they'd launch those games here.
It's unrealistic to expect anything "big" we didn't already know about to be announced before E3, so you've got a couple more months to sit through if you're looking for hype. Me? I have a backlog of games I still need to buy, so it's not bothering me in the least.
Tag - "No trolling on my watch!"