The next "845" is:
"Intel E7205 chipset, formally known as Granite Bay, for the Pentium 4 Northwood (and single processor Xeon Prestonia) is expected to be released either in Q4 or Q2 2003. Granite Bay is to feature 533Mhz FSB support, dual channel DDR200/266 DDR SDRAM (giving a memory bandwidth of 4.2Gb/s), AGP 8X and Intel's ICH4 South Bridge."
As taken from official roadmap.
DaFinn.