WWDC 2015 is being billed as "the epicenter of change", and there's a lot — or nothing — that we can read from the shapes and colors of the invite.
And as we are wont to do, we went ahead and made a wallpaper based on the design of the invite. That means there are plenty of colorful circles and rounded squares to suit your wallpapering needs so you can look forward to WWDC 2015 in style. Are we going to see iOS 9 and OS X 10.11 there? Maybe.
In the meantime, go ahead and hit our forums at the link below (we've hosted them there for ease of distribution). You'll have to register, but don't worry, it's a free account and you can even sign up with your Facebook, Google, or Twitter credentials. Go, download, be colorful.