>pparently the dev said there won't be updates in early access
Sounds like a scam to me fam, because it entirely defeats the purpose of Early Access. EA is a tool for largely indie devs who don't have the resources to focus test, bug test, or necessarily even have the money to finish production with all the features they'd want in the game. The general public ends up paying for the privilege of being the game's production crew, in exchange for having an active role in the development of a game they felt was worth investing in.
This sounds to me more like the EA was a scam to get some basic IP rights secured and a proof of market portfolio he could take to an animation studio and pitch. If that's the case - you might still end up getting a complete game out of it - but that will be later down the road, and most likely an entirely new development that's been licensed to a major publishing house as a tie-in to the anime. The existing work on LWN will be quietly shitcanned, while explaining to the customers that this is a good thing and will result in a better product. You'll be encouraged to buy the new title, and if you're lucky - you might even get a 10% off coupon for being a long time supporter.
Most likely, though, the anime will fail to meet expectations, all the money will be burned up by pivoting to a manga series in last ditch effort to save the IP - and then he'll just disappear into the net like a fart in the breeze.