17 “For behold, I create new heavens and a new earth;
And the former things will not be remembered or come to mind.
18 “But be glad and rejoice forever in what I create;
For behold, I create Jerusalem for rejoicing
And her people for gladness.
19 “I will also rejoice in Jerusalem and be glad in My people;
And there will no longer be heard in her
The voice of weeping and the sound of crying.
.............................
25 The wolf and the lamb will graze together, and the lion will eat straw like the ox; and dust will be the serpent’s food. They will do no evil or harm in all My holy mountain,” says the LORD.
I'm not totally sure it's talking about heaven, and I don't know if it's more like a "token" wolf, lamb, etc, or specific ones that were also on Earth.