The "Victoria" Christmas special will reportedly run for two hours.
The period drama's creator Daisy Goodwin recently confirmed that not only was she penning content for the second instalment, which was recommissioned just days after the first series wrapped up last year following a series of rave reviews, but she's also trying to come up with a storyline for the festive episode later this year.
And, according to the RadioTimes.com, the special will run on Christmas Day (25.12.17) and will last for 120 minutes - including advert breaks - on ITV.
Not much is known about the special but it's thought it will be a follow on from the second series, which will grace screens in September, as Jenna Coleman reprises her role as the late Queen Victoria, while Tom Hughes returns as Prince Albert.
The upcoming series of the drama takes place roughly six weeks after the last series - which ended in October 2016 - and is set to establish Queen Victoria as a new mother, as she is "learning to balance her responsibilities as both parent and queen".
Daisy said previously: "Victoria is the only Queen Regnant to marry and give birth while on the throne and the challenges of being head of state as well as a wife and mother are legion. In many ways, Victoria's dilemma is a modern one - how do you have a successful marriage and a happy family when you are holding down an important job. Can you really have it all?"
Meanwhile, executive producer Damien Timmer said of the new series: "At the centre of it is a beautifully nuanced study of a young marriage, and it's a joy to watch Jenna and Tom find new layers to this iconic couple."
And it seems there may be more series on the way as Daisy still has ideas up her sleeve that she'd like to put into a script over the next few years.
Jenna, 30, explained previously: "We're doing season two and then it's a question of where we go from there. There's no shortage of story. You don't want to go through it too quickly. There are nine children to have, so there is a long way to go."