Ending of Fast and Furious 7 rewritten 'significantly'

Kurt Russell says the whole ending of 'Fast and Furious 7' is being changed in the wake of Paul Walker's death.
The film franchise's star was killed in a horrific accident on November 30 when the car Paul was traveling in careered off the road and smashed, which has led to his final film - which was incomplete at the time - being significantly altered.