As of right now, Hillary has 1001 delegates. Bernie has 371.
Hillary won Florida, Michigan and Ohio in the past, making it very likely she will win them again and these are states heavy in delegates. Expect Bernie to suspend his campaign shortly after March 15th if he can't win anything besides Illinois and Missouri.
Should it go beyond that in April, he will be slaughtered in New York and Pennsylvania.
Should it unnecessarily continue even after that, California and New Jersey will nail the coffin shut.