Questions about future IXP1200 family processors

Can anyone tell me what the PCI interface on future IXP1200 processors are likely look like? (Without disclosing confidential information, of course.) Specifically, I'm curious to know if we might see a sustained rate of 400 MB/s from the PCI bus (or PCIX) to the SDRAM on a next generation IXP1200 (say, within 6 to 12 months). To do this, the IXP1200 would need either a full blown 64-bit/66 MHz PCI bus or a PCIX bus. -Scott