There is not much reason to think that true Christians (born again) won’t be with their beloved pets in heaven because Elohim promises to redeem all of Creation except the humans who will have rejected salvation by Messiah Jesus Christ, and because Elohim loves to delight His children (the saved). Imagine a human father being able to bring the family’s dead pet to life, the delight it would bring his children, but if the beloved pets of the saved will not be in heaven then Elohim promises to wipe away the tears, the sad memory of pets erased or understood in Elohim’s plan.