It's kind of like that little kid question: "Will my dog go to heaven?"
Here's the deal as I understand it: in the New System TM , you're not immortal, you just live until something else could kill you. You're like the Highlander. So apparently the DNA that Jehoober Intelligently Designed TM will have to get Intelligently Reworked TM . One of the hypotheses about the purpose of telomeres in the DNA is that if the cell were to keep dividing without end (because telomeres protect the DNA replication process from harmful proteins, yet eventually become clipped off), the more likely it would become cancerous. But cancer only exists because of sin, which should be gone--and perhaps, a little UVA and UVB cooking, and mutagenous chemicals. Okay, let's leave the chemicals out. Jehoober is going to have to turn the sun's light down a little. So much for the Intelligently Designed TM and fine-tuned sun shining just enough to keep us alive without introducing errors into the DNA replication process. Or maybe he can get around to Intelligently Designing TM skin that's UV ray resistant, or a DNA replication process that is better than, on average, 1 error per several billion base pairs. At any rate, he'll have to Intelligently Rework TM his original plan. Maybe that's why he said it was "good" and not "perfect" or "excellent."
Anyway, back to the lions and other animals. Now animals will all be given jobs as playmates. Never mind the need to acquire energy through eating native plants and other animals. Apparently Jehoober will have them gather at his magic feed bag of endless hay so they may eat. Of course, he'll have to Intelligently Redesign TM their digestive systems, vitamin synthesizing, and protein synthesizing abilities to accomodate this water and hay diet. He'll also have to Intelligently Redesign TM their teeth--no need for sharp canines and incisors. They'll all need flat teeth for grinding, much like humans have. He'll also have to Intelligently Retool TM their killer instinct, which keeps them in harmony with their natural surroundings.