3rd account in a household with existing exemption

[RoninIX]

I'm something of an alt-ohlic and like playing may different class/race combos. I've filled up my existing character slots and am thinking about making another account.

Question - If I make a second account for new toons, do I need to get an updated IP exemption for that account so that my wife and I can continue playing together with her using her account and me the 2nd acct?

** Will not be multi-boxing. Will only be 2 people and 2 accounts in use at one time.