The Indians lost Donaldson, will probably lose Allen, Miller, and Brantley, and might trade Kluber or Bauer. Those are significant losses, and given the Indians payroll situation, those free agent departures likely won't be replaced adequately. It's also debatable whether Lindor and Ramirez will be as good next year as they were in 2018.
I would be shocked if they were as good as they were last year. I think they're like an 85 win team at most in 2019.