My Guess would be that they will since nehalem is coming out at the end of the year and it's been said that's also around the time SSDs will be more affordable and mainstream. I't practicly garanteed that there will be a performance boost with SSD, though it probly won't be perfected for a few months after nehalem...
This is really outside of the processor and more about the controller on the motherboard. My machine already natively supports SSD drives as they appear as standard SATA drives (or SCSI/FC on some high end ones).
I installed 3 64gig Solid State drives in my pc with a raid 0. Fast as hell on reads, around 4 to 500% faster, but about 1/3 the speed as a single SATA on writes. My MoBo is an Asus A5N32-E SLI Plus. They show up as standard SATA drives. The only problem I have had is that I had to disable the hard drive sleep option. It would blue screen and reboot the box if the OS tried to put the SSD's to sleep.
If any one is interested I can email the PCMark test results to them. Just shoot me a request at email@example.com