The price may change just like the C300 did. The C300 was listed at $20,000.
Honestly this camera is attacking the Red Scarlet and I think it's awesome and priced right. However, that $5k - $8k range is important. Canon needs to put something there. Hell, change the price of this 4K DSLR to $8k and people will be amazed.
If I had the money, I'll get this camera. It's what I want, just priced out of my range. I'll rent it for when I shoot a feature for sure.
It may come down in price by the time it's available. Currently it's too close to the C300 and I'm sure they'll want to set them apart by at least $3k.