Interesting. Would love to test that/feel how that works.
Here that's not combined, if there's something in my blind spot I just have those lights (flashing if I set a turning signal). There's an assistant that is supposed to keep me in my lane. In theory it ignored lane changes only if I set the turning signal (-> intended by me) and otherwise steers in the opposite direction (I can still beat it, it just tries to convince me otherwise). Plus, it vibrates the steering wheel.
It doesn't work, though. Audi was obviously so afraid that people start leaning back and drinking a nice cup of coffee that they added a very annoying 'are you still alive' test. That assistant is going to power down on its own as soon as it things you're not steering anymore. Which often happens without reason (just driving straight).
Basically that thing is only working if you hold the steering wheel like a 50's/60's Hollywood star, turning left and right on a dead straight street. Maybe the next incarnation will improve this design..