"North will have a large role in the wedding!" usmagazine.com quoted a source as saying.
Another friend said that the couple's wedding plans are well underway and they will have "lots of events leading up to the big day" for their guests.
However, Kim, who was married twice before, is said to have been very reluctant to have a lavish ceremony.
"Kim isn't totally pumped about a huge wedding. But she's going along with it," another source said.