Nope. Not a chance. The reason is the iPod touch. Asked and answered.
By WWDC a 64 gigabyte iPod touch will still carry to high a price tag to roll into the current product line. These expensive devices will not continue to sell well if price-by-gigabyte keeps increasing. No, a $1499 64 gig iPod touch will NOT sell. Not any better than the current $499 iPhone is selling. Also, not well.
WWDC may or may not see a new iPhone. It makes no sense to roll out iPhone 2.0 concept without a "version" 2 piece of hardware as well. Even the most software-dependent device in history has a hard time selling "version 2" when all thats changed is the software.
Likely, we'll see the same device with some new internals. The standard 8 and 16 gigabyte drives with a 3G chipset. Hopefully the headphone jack will be fixed, new higher quality speakers, etc... However, it will look virtually the same. We'll also see the price stay the same. 8 gig $399, 16 gig $499.
iPod touch will go unchanged.
*Unless the rumors of Apple adding premiums to their devices for unlimited music access through iTunes comes to be in the near future, but this adds an entirely new element to the game and is not even comparable to the current business model.
EDIT: P.S. What kind of options are Yes, No, and POSSIBLE? Anythings possible, why include such a useless option? Notice how everyone voted for it? Of course.