Katie's close friend, Andrea Bernholtz, the president of the Rock and Republic fashion line, told Us Weekly magazine: "All I really know is that the wedding is soon! They will surprise us all."
Another source close to the couple said: "It's going to happen in the next three to six weeks."
Tom and Katie's representative Arnold Robinson has confirmed they are planning to tie the knot this autumn.
He said: "The wedding is still in the planning stages. They're really excited about it. They have always said they will be married by early autumn, and they are still in that window. They can't wait."
Tom and Katie were rumoured to be arguing over the wedding because the former 'Dawson's Creek' actress' devout Catholic parents, Martin and Kathleen, refused to attend a Scientology ceremony.
They allegedly disapprove of Tom's devotion to the bizarre sci-fi cult.

In other news, Tom Cruise has completed his last impossible mission before marrying Katie Holmes — winning over Grandma reports The ENQUIRER. !

Katie's feisty grandmother had never met Cruise and hadn't even seen any of his movies. But she was sure of one thing — she didn't like him!

"All she knew was that he took her little girl away — and she hated him," a Holmes family neighbor told The ENQUIRER.

But the 44-year-old actor was determined to change all that when he traveled to Toledo, Ohio, for a summit meeting with Katie's maternal grandmother — 81-year-old Jacqulyn Craft. And just as President Bush brings Condi Rice to crucial conferences, a nervous Tom brought his 70-year-old mom Mary Lee for moral support.