Will earth become a planet without Humans? lets imagine that in all the human in earth become Arhant, so after their death they will not born again (i mean all of the humans).  after this will new humans born or Not, will earth become a planet without Humans  ?
Definitly, As per science when there is a start, there must be end.
Even our galaxy will expire.

you can take example of anything in this world, nothing is permanent.