I don't think physical media will be dead in the near future. It may not be as prosperous in the near future, but I see a lot of people not being able to afford or obtain streaming devices and fast internet connections.
Maybe "near" was a bad word to use, but it's coming sooner than later. A large segment of the population now is heavily into MP3 players for music (and even movies), or they're using their phones for that as well. The only reason I buy a CD is to rip it and put it on my iPod. More artists are releasing stuff online.
This is changing now for movies as well on the portable devices, and with the expansion of gaming consoles from just games to full-fledged media centers for movies and music, and new, easier to use, and cheaper network based hard drives with TB's of storage, there isn't much of a reason to keep physical media any more.
Even the TV and movie industries are getting into it. HBO is shooting for a subscription streaming service for iPad and other mobile devices by February. Why not cut out the cable companies and provide the service directly to the user for a bigger cut of the service fee?
I'm see networks moving to this model as well. Why not provide your own subscription service? Subscribe for a few dollars a month to a network for access to most shows. They can charge more for premium shows and live content. It's gonna happen.
So yeah, maybe near future wasn't the right choice of words, but in 5 years, I see a dent in consumption of physical media, perhaps even the death of the CD. DVD's won't be long after that, maybe 10 years. BluRay is probably the last physical media format we see.
As far as fast internet connections go, that's expanding all the time. Sooner than later, the vast majority of the population will have access to broadband internet.