According to CPU World, which dug up a Haswell refresh price list on ShopBLT, almost all of the chips will get a 100MHz base clock bump and boost clocks will be increased by 100MHz, too.
The prices aren't surprising, either.
The entry level Celeron G1840 is priced at $47.50, followed by the G1850 at $59. Two Pentiums are in the mix, the G3240 and G3440, priced at $70 and $90 respectively.
Three new Core i3 SKUs are coming, priced between $132 and $166. The Core i5 4590 and Core i 5 4690 will cost $213 and $235 respectively. The lone Core i7 part is the i7 4790, priced at $326.50.
The chips should go on sale sometime in Q2, but we are not entirely sure when.