Um, no. Not the "news." You see, if it were in the "news" it would need to be true.
There are some RUMOR sites that have published photos of prototypes of what MIGHT BE cases for the next version of the iPhone. MAYBE.
I don't doubt that there are entities on the Net who will be MORE than happy to sell you what you think is an "iPhone 5" case if you like, so in that sense I suppose they are available ...
Rumor sites are sometimes (but not actually all that often!) correct, either by insider tips (rare) or educated guess (common). Their overall track record is, well, iffy at best (though everyone remembers when they got it right and "conveniently" forgets all the wrong ones).
It's fun to read the "reports" but a bad idea not to take them with an enormous grain of salt until the product is actually released.