Julian Roberts, chief executive of Old Mutual, said on Thursday that he hopes to reveal the future structure of the life assurance and banking group around its 2009 results next March. Analysts have long expected a break-up of the group’s diverse businesses and there has been renewed speculation that Nedbank, the South African bank, is likely to be sold. Roberts also suggested the company may restore its dividend at year-end, as he unveiled Q3 sales figures that held up well in some areas.