The article is wrong, Haggis isn't writing Bond 23, Peter Morgan of Frost/Nixon fame is.
Mendes would be a fantastic choice. Grant it, I'm not the biggest fan of American Beauty or Jarhead (though solid films), but I fuckin' LOVE Road to Perdition, one of my all time faves. I think his style, especially in that film, is a perfect match for the new tone set by Campell and Morgan with the last two installments. I sincerely hope this deal goes through....