Not even in the next decade. For a good debunking of the claim of cloning a mammoth that’s in all the news, John Hawks has you covered.
When I heard the story came from George Church, I admit that I rolled my eyes and moved on. Church is a very smart guy, but he also tends to start babbling far out science fiction when he’s got an audience. As Hawks points out, he’s made 45 edits to elephant cells in a dish; that’s an awful long way from the thousands he’d need to begin to re-engineer an extinct animal, and a single cell is even further from a healthy, functioning large mammal.