There are new, hidden, and redone areas. They made it so that you go from training to the first chapter. Tram ride isn’t done yet from what I’ve seen. You have the option to swap between wrench, crowbar, and knife at different points. There is light shaft work. Some little details like functionally light switches and rooms with what is basically asmr half life noises. Enemies have new attacks if select extended difficulty. Its a long list Im sure I left out something.