Some of our tools can, and some can't.
For ONTAP tools 10.x, you can. For 9.x, you cannot.
For SnapCenter, you cannot, but for NetApp Backup and Recovery, you can, although it really doesn't have a plugin per se, since you manage it through NetApp Console.
So, in short, if you want to use SnapCenter with your new vCenter, you will need to deploy another SCV appliance.