The memory model is going to be similar to Rust. No GC or manual management. I'm actually working on it right now. Should have done it sooner, but it took me lots of time to do the research and chose the right model.
Getting the Rust compiler to handle memory correctly took years one complete refactoring of the type system, and a number of less major changes before Rust reached version 1.0. Even after that, the borrowing system has regularly been refined to become gradually more intuitive and more powerful.
Do you have precise plans for this feature? If they're written somewhere, I'm quite interested :)
Good luck in the future. You clearly have a lot going for you.