You're naive thinking that the game is developed each 2 weeks by only 2-3%. For sure NLT is in the implementation way ahead of current game progress. Splitting the game and releasing it in small portions is a strategy to gain more patreons and make more money. But I don't blame it as almost everybody wants to have more money.

I'm pretty sure the game will be internally completed this year so the developers can focus on another game or just take a few weeks of holiday. However we as players will probably have to wait for completion till second half of next year.