Will Meghan Markle and Prince Harry be the new royal baby's godparents?

The world is anticipating the arrival of Duchess Kate and Prince William's third child.

And while some information about baby No. 3 has become widely known, like their official title or where they will be born, one important detail has remained under wraps -- who their godparents will be. Certainly, everyone is rooting for Prince Harry and Meghan Markle to be the child's godparents, but royal expert Marlene Koenig said it's "rather unlikely."

With Prince George and Princess Charlotte, Kate and William chose godparents from their social circle. And like most royals, the two have numerous godparents -- George has seven and Charlotte has five.

Some of George's godparents include William van Cutsem, one of William’s oldest friends; Oliver Baker, a friend who went to St Andrews University with the Duke and Duchess; Emilia Jardine-Paterson, a school friend of Kate’s. Likewise, some of Charlotte's godparents include Thomas van Straubenzee, a close friend of William; James Meade, a good friend of Wiliam; and Sophie Carter, a longtime friend of Kate's.

Kate and William broke from tradition with their selections, with both lists filled with close friends instead of royals or family members.

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"This is a definite move away from the more traditional -- foreign royals or older relatives, none of who would have a close relationship with their godchild," Koenig said.

So given what they've done in the past, it wouldn't be a surprise if Kate and William decided to select a few of their closest friends as godparents. But on the flip side, Kate and Meghan have grown incredibly close in the past year alone, with both ladies dishing out advice to one another over afternoon tea, so it wouldn't be far-fetched if Kate and William broke precedence by selecting Harry and Meghan.

For more on baby, check out the complete timeline of Kate's pregnancy here.