No time soon thankfully. I used to worry about it quite a lot when I was younger but don’t worry about it, not in any foreseeable generation. Sarah mentioned the sun which will expand and gobble up the Earth in 5 or so billion years, by that point however humans (if not extinct already!) would have left due to it being too hot! There wouldn’t be too much dwelling on it but they would be thankful that their ancestors didn’t stay on that one world and await their doom! The main thing to occupy one’s mind with at the moment is the wellbeing of us and other species on Earth, as we’re doing plenty of bad things to put everything in danger!