Definitely should go ahead imo.
One of the French team, former Arsenal and Chelsea midfielder Lassana Diarra learned later that his cousin, Asta Diakite, had been killed in one of the attacks in central Paris, says the BBC. "In this climate of terror, it is important for all of us who represent our country and its diversity to stay united against a horror which has no colour, no religion," said Diarra in a statement. "Stand together for love, respect and peace."
http://www.msn.com/en-gb/news/parisattacks/wembley-paris-tribute-as-france-honour-england-fixture/ar-BBn3Ny2?li=AA59G2