Yes, I also heard a report from South Korean publication ET News. In this report it was said that the iPhone 6 will be released in September and will feature a slimmer profile than its predecessor.
There is some declaration about its price. The news said that the price of the iPhone 5s will go down to $100 in May for reasons unknown, but a phablet launch would certainly explain the price drop.
There is some doubt in this report. It's not clear at this time whether any of these new iPhone reports are based on actual Apple plans, or whether they're related in any way. What's absolutely certain, however, is that they can't possibly be confirmed.