You can now say you're leaving this month!
I hadn't heard of Photopass+ but now that I've read about it, it makes so much sense that you can get your ride photos too! It's about time they did something like that. I haven't bought a Photopass CD the past two trips, but I would tempted to do something like that now if it includes ride photos.
As for the backpacks, I really like the Toy Story one, but that's mainly because I'm not a huge fan of backpacks that have flaps over the openings, at least not at Disney. Plus, while I can't tell how large the other two are, if the Toy Story one is for kids, it's probably smaller, and I tend to think smaller backpacks are better at WDW, provided they can still fit everything you need. I actually really want to get the Brave kids backpack from the
Disney Store, because it's on sale, but I bought a new backpack before my June trip. I'm always obsessed with finding the perfect bag for Disney haha.