Update (1st December, 2020): Ubisoft's investigation into why UK gamers can't upgrade their PS4 copies of Assassin's Creed Valhalla and Watch Dogs Legion has be fruitless thus far, but in a message on its Twitter account it promised it was working to resolve the problem.
The saga rumbles on...
Update (28th November, 2020): It's been over a week since this issue surfaced, and Ubisoft's forums are still filled with disgruntled fans unable to access the free PlayStation 5 upgrades promised for PlayStation 4 games, when using physical media in European territories. A quick look on the forum shows many people having the same issue, with Sony or Ubisoft yet to offer a consistent solution. We'll check in with the French publisher and see if it has an update to share.
Update (23rd November, 2020): Ubisoft has told Eurogamer.net it’s investigating issues with PlayStation 4 to PlayStation 5 upgrades of its launch titles, which appear to be affecting European owners of physical Blu-ray discs. The French publisher did suggest a workaround, which you may have mixed success with. Basically, you need to insert the PS4 disc, select View Product, and then access the upgrade from there. It may work for you, though we’ve read that some people don’t see the View Product option at all. Your mileage may vary.
Original Story (22nd November, 2020): If you own a PlayStation 4 copy of Assassin’s Creed Valhalla or Watch Dogs Legion that you’re hoping to upgrade on the PlayStation 5, you may be bang out of luck because neither title is working as intended right now. This issue only appears to apply to Blu-ray owners in select European countries, but it’s no less frustrating.
So, as you may already know, both titles offer free PS4 to PS5 upgrades. While we can verify that PS Store purchases work as intended, Blu-ray owners are having trouble. What’s supposed to happen is that you insert the PS4 disc and then download the next-gen version. Instead, fans are being quoted a £59.99 fee.
Obviously, this is an error, and Ubisoft has said it’s investigating. There is a workaround that involves creating a Turkish PlayStation Network account, but we wouldn’t recommend going to those kinds of lengths for an issue that will likely be solved within the next few days. It’s a disappointing mix-up, though, of that there’s no doubt – hopefully it’s all resolved soon.