Why wouldn't He have? I have a writing project I've been working on since 2012 but I do expect to be finished with it eventually.
You could argue that the various scientific hypotheses for the ultimate fate of the universe are significantly more depressing than the traditional view of Gabriel blowing the last trumpet and the dead springing up from their graves, but that doesn't mean that the mere fact that the universe as we know it will end is at all difficult to explain from an Abrahamic perspective.
Such as all matter being ripped apart in 25-30 billion years for instance?