Assassin's Creed Origins, Odyssey, and Valhalla — the series' so-called open world RPG trilogy — have made Ubisoft a ridiculous amount of money. How? Well, it's all been down to each game leaning towards a live service model. All three titles received significant post-launch support in the form of free content updates, paid expansions, and regularly released cosmetic DLC packs. Again, this approach ended up being incredibly profitable for the French publisher.
And so it's no surprise to hear that cosmetic microtransactions will remain in Assassin's Creed Mirage — despite it being a much smaller, much more traditional Assassin's Creed project overall.