Today, Intel just announced 7 new models of Skylake processors for desktop. The lineup includes the i7-6700, i5-6600, i5-6500, i5-6400, i3-6320, i3-6300, and the i3-6100. Only the core i5 and i7 are quadcore while the core i3 ones are just dual core. These CPUs are non-k model thus they are not overclockable and has a locked BCLK which is primarily used in overclocking.
The i7 6700 is priced at $312 with a $38 difference from the 6700k. And the i5 6600 is priced at $224 which is $19 cheaper than the 6600k.
Source: #1