David Miliband is just Tony Blair mark II. Anyway he is too much in love with the money he makes to give it up for a return to politics.
To quote Wiki:
According to the Financial Times, "much of Mr Miliband’s time has been spent on his lucrative directorships and speaking roles, which he would be expected to give up if he returned to frontline politics…as of January 2013, David Miliband has made just short of £1m on top of his MP’s salary since he failed to win the Labour leadership in the summer of 2010."[86]
David Miliband is one of six members of the Global Advisory Board of Macro Advisory Partners, which advises multinational corporations, sovereign wealth funds, investors and governments.[87]
In January 2012, David Miliband joined the Board of Directors of Mauritius-based private equity group, Indus Basin Holdings. IBH operates Rice Partners [88] in the Punjab region of Pakistan. It specialises in managing the end-to-end supply chain for major global users of rice.[89][90]
According to the Financial Times,[86] "Mr Miliband’s jobs include advisory roles with VantagePoint Capital Partners, a Californian group; Oxford Analytica, a UK advisory company; and Indus Basin Holdings, a Pakistani agrochemical group. He is also a member of the advisory board to the Sir Bani Yas academic forum, which is hosted by the Ministry of Foreign Affairs of the United Arab Emirates. Despite supporting Arsenal, Mr Miliband is vice-chairman and a non-executive director of Sunderland. As a speaker he commands a fee of up to £20,000."
Miliband is also on the Advisory Board of VantagePoint Capital Partners.[91]
David Miliband is a member of the Trilateral Commission, founded and chaired by David Rockefeller.