I expect that contracts and agreements with OIN still stand and will continue to stand for as long as those agreements were originally set to last.
It's not like when you buy a company then all of a sudden you eliminated all the original company's obligations. The good and the bad are part of what you buy.
To know for certain you'll have to look at the OIN contracts and see if there is any escape clause or whatever for pulling your patents back out. Like if Novell could buy themselves out of the OIN then it would be possible for the new patent holders to do that also.