Floyd Mayweather vs. Conor McGregor Promo

Will Floyd Mayweather vs. Conor McGregor happen in 2017?

Floyd Mayweather vs. Conor McGregor Promo

https://www.youtube.com/watch?v=HzC0QEZfLuw

Will Floyd Mayweather vs. Conor McGregor happen in 2017?

If so, who will win the fight?