How will adding hosts to a New vCenter 6.0 VCA install affect my vmware virtual environment running under vcenter 5.0 in windows 2008?

I am getting PostgresSQL and VCSServiceManager errors when upgrading a windows 2008 vcenter 5.0 to 6.0 update1.

Can I just create a new vCenter 6.0 VCA and join the hosts to this vCenter?

What would I lose or will it affect the hosts that were part of the windows 2008 vCenter and in what way?