I currently has a domain freeppmoney.com in sedo, the page rank is zero. I am wondering if it will get higher PR couple of months from now with parking in sedo? Thanks,
You won't get a higher PR just by letting it sit there but there is a chance you could increase it if you had enough high PR links to the page. Google really isnt fond of parked pages however.
Remember that SEDO's rules prohibit to artificially increment the Link Popularity of a domain (being the links no-followed or not), after it's parked.
That won't increase because domain name parked. You can only do some offsite efforts yourself to have mo higher PR.