On the reason why they feel they can ship the game by 2018: You can see them on the scrolling images bar below the video on the Fig page. They've shown the updated models of the main characters, Raz, Lili, Sasha, and Milla. Some of it has been stated by Tim himself, on the actual Psychonauts 2 fig campaign page:
PSYCHONAUTS REMASTERED PLUS
It makes you appreciate the development of the game a lot more than you do just assuming the budget based on the high figure (which isn't really 3.3 million, as the documentary is much bigger than planned too, as it was 20 episodes long, so it cost a lot more than the planned $200,000 too (note that the Broken Age Kickstarter always stated that half of the money would go to 2 Player Productions), plus the kickstarter rewards took a big chuck of the total cost too). I recommend doing so, as it really does explain where all of the money for Broken Age went, why the game ended up the way it did, how the game was handled, and the challenges they had doing so. You can watch all of the episodes now on YouTube. The documentary isn't just for kickstarter backers anymore though. Some of it is (the fact that they had to make a 2D engine from scratch for Broken Age and the fact that they had to change the story and scope of Broken Age based on the bigger budget). The lessons learned with Massive Chalice will be used in the handling of Psychonauts 2. The plan for that game was made right from the start, the scope stayed consistent, and they were a lot better with communication with both backers and non-backers as regards to the development of the game.
![psychonauts remastered psychonauts remastered](https://www.jvfrance.com/wp-content/uploads/2016/06/psychonauts-PS4-940x560.jpg)
The fact that they don't have to do either this time around will cut development time drastically. They had to make a brand new engine for Psychonauts, as it was their first game, and they had to design all of the characters and their personalities from scratch. They plan for it to take 2 and a half to three years (releasing in 2018), about half the time of the development for the first one, for the same reasons as point one and two.
![psychonauts remastered psychonauts remastered](https://cf.systemrequirementslab.com/global/assets/images/boxshots/ref_default/voodoo-vince-remastered-system-requirements.jpg)
They had to design characters from scratch.They already have a functional 3D engine for their games, Buddha, so they don't have to worry about coding that, which took a significant chunk of development time and money.
![psychonauts remastered psychonauts remastered](https://rectifygaming.com/wp-content/uploads/2021/04/Psychonauts-2-2021-release-reassured-1536x864.jpg)