Prince Harry and his girlfriend Cressida Bonas will spend Boxing Day with the royal family at the Sandringham estate. Is this yet another sign that Prince Harry and his girlfriend Cressida Bonas will get engaged soon?

Prince Harry is returning to London from his charity trek in Antarctica, after reaching the South Pole last week. According to Express, the couple will soon reunite, as Cressida Bonas has accepted an invitation to Sandringham, where the royal family will gather for the holiday.

Though Prince Harry's girlfriend Cressida will not be spending Christmas with the Queen (this is  a privilege restricted to married relations only), she will join the traditional shoot on Boxing Day, Express reports.

Is this yet another sign that Prince Harry and his girlfriend of almost two years, Cressida Bonas, will get engaged soon?

Rumors of their imminent engagement have circulated since sources have said Harry, 29, is "incredibly serious" about Cressida, 24. During the summer, they went on a vacation together in Botswana and, before he left for Antarctica, the pair were seen out in public on several dates in London.

Though the couple have spent a month apart with limited communication, Cressida was never out of Harry's mind while he was away: a source told the Daily Star newspaper that throughout the gruelling trek to the South Pole, "the thought of being with Cressida is helping keep him going."

How sweet! We bet this couple can't wait to reunite when he gets back to London.

As we previously reported, Prince Harry and Cressy are planning to spend some "us" time upon his return, The Daily Mail reports, presumably after the holidays.

"They're looking at either Africa or skiing in Switzerland," a source told the publication.

Is this a perfect opportunity for the couple to get engaged?

We'll have to see what the new year brings for these lovebirds!