So I got a bit curious and looked into this. The 75% figure is coming from the dev of a game called Crashlands who are releasing a sequel sometime this year. They do have a website, located at https://www.crashlands.net/ which… Doesn’t make any mention of a sequel being announced. Likewise they have a game specific blog which also doesn’t make any mention of it ( https://www.bscotch.net/blog/crashlands ). I think that’s where they’re missing out on marketing the most - their site should really show the trailer for the sequel.

To their credit though, they have made a “call to action” to wishlist post on Crashland’s news page ( https://store.steampowered.com/news/app/391730 ) which I think is where most people learn about game updates and changes. Their Twitter also has a pinned link to the sequel (although it is not a tracked link, so they can’t measure metrics through it).

And then there’s also the elephant in the room; lost sales… People who were going to buy the game will see the sequel announcement on the page. They might decide to just skip the original game and wait a few months for the sequel and wishlist it so that they can be reminded.