The way Kiwis are playing, i have a serious doubt of India winning the WTC finals. Kiwis going to roll over Indians for sure, conditions are much more favorable to kiwis, its like Indians playing in Srilanka against any SENA countires and calling it neutral ground 
and 2 practice match with England going to help them drastically.
Hope kohli wins the toss then we might able to see some competition.
There is no doubt it is going to be a great contest between India and New Zealand and the way in which New Zealand is performing in England right now it is going to be a tough match and India will be confident about their performance abroad as well because they were able to perform exceptionally well and won series when no one was expecting even without a full team. If the Indian batsmen are able to perform then India have the bowlers to trouble any team. and 2 practice match with England going to help them drastically.Hope kohli wins the toss then we might able to see some competition.
In most of the New Zealand tour India used to experience hard situation due to the varied climate. This time the match is being played on England, so there is 50-50 chance for both the teams.
India usually struggles in New Zealand conditions but i doubt whether the present team has toured them yet and if they did they could change that history as well and the match is taking place in England and India has won matches here and it is not a huge deal as India is winning more matches outside the subcontinent for a long time and i am expecting a good battle between the two teams.