This is a good question with a long answer. The problem I see, wikipedia.com is very topic specific. It doesn't group enough other information related to peak oil. From what I see, this new peak oil wiki page groups peak oil, gas, uranium, coal, alternative energy...
In common usage the term "peak oil" involves many interconnected problems and not just an isolated theory. So perhaps the current Wikipedia article lacks the necessary scope for understanding the problem. Since much of peak oil discussion is about the interrelated effects of oil resource depletion, a page that brings together the whole energy picture seems like a good idea.
Also on the new page I would add a note to the top explaining this difference.
"Peak Oil is a problem that affects civilizations entire energy picture. The purpose of this page is to explain peak oil and to bring together subjects related to peak oil. Such as oil depletions impact on natural gas demand, coal reserve estimates, industrial metals, climate change (effects from burning dirtier fuels), economics impact to the petrodollar, scenarios such as global power shifts (Russia next/last superpower), mitigation and population."
You might want to edit out a few things in that opening paragraph, but you get the idea.
And I'm interested