Like others here, I am looking forward to seeing the Blu-ray artwork. I don't think Disney will just reuse the photo from the old VHS (or as it turns out on the DVDs) for the North American release. I could be wrong of course, but I think they'll want something that will grab people's attention more, something that would really pop.
But I wouldn't be too bummed even if it was that photo, honestly, it's not that bad. I'm really excited to hear what the bonus features will be, no doubt the DVD will get the shaft when it comes to bonus features, but the Blu-ray has to have a few new good things, it's bound to included a least a "Disney intermission" for when you set it on pause, and those are really fun, judging from what I've seen on my Muppets and Wreck it Ralph Blu-rays.