If you are using linked clones, the short answer is no. We went thru this exercise last xmas. There was a ton of misleading documentation out there, some said you could do it, others said you could not. We tried for an entire weekend and in the end gave up.
Linked clones have their info stored with the composer, most likely installed on your current vCenter. Unless something has dramatically changed in 6.0, it won't work.
You'll need to re-create your pools, re-assign your users , then (if you're using them) re-attach the personal disks. Believe me, this was not a fun undertaking moving from one VC to another.
Here is my thread from Xmas time, it may help somewhat
Best Practice Help For Moving To New vCenter With Linked Clones
