God will not wait that long to bring a different ending.
Really. If the sun goes, so does the earth. Earth could have maybe 1,007 years from today, minimum. After that, who knows?
The concept of the Twin Paradox applies.
https://en.wikipedia.org/wiki/Twin_paradox
In physics, the twin paradox is a thought experiment in special relativity involving identical twins, one of whom makes a journey into space in a high-speed rocket and returns home to find that the twin who remained on Earth has aged more.
God created the earth and the universe in 7 days, from HIS perspective. But FROM THE PERSPECTIVE OF SOMEONE STANDING AT THE SPOT WHERE THE EARTH WOULD BE, it was 14billion years.
So God might get around to resolving our sun situation in a day or two.