Eddie Jones’ side will be out for revenge, of course, given that these two met in the 2007 final.
South Africa won that match 15-6, with all 21 points coming from penalties, but neither side have made it to the final since.
The two following tournaments were both won by the dominant New Zealand side, who were obvious favourites to make it a hattrick of titles before the 2019 edition kicked off.
But England stopped them in their tracks, of course, with a stunning semi-final performance that saw them beat the All-Blacks 19-7.
Can they go one further and upset the odds again by crowning themselves as world champions, though?
We’ll find out for real on Saturday but for anyone who can’t wait, a supercomputer has come up with a prediction.
The QBE supercomputer says that in a reverse of 2007, England will just about edge victory this time with a score of 22-20.
But how did they come up with this number?
Well, QBE run things through 3,750 times, apparently, to see the likelihood of outcomes.
Their model is “based on 10 years of historical data and how well each team has played in the past against opposition of similar ranking, as well as the success ratio for kickers, the impact on each team of playing at home or away, and the international experience of each team captain” – according to their website.
But before anyone gets too excited, they should keep in mind that this computer did believe both England and South Africa would get knocked out in the semi-finals.
So it’s probably best you wait until Saturday lunchtime before you head out celebrating.