A few months in 21 seconds with the timeline ending around last week for the bus station and maybe 2 weeks ago for the multi story car park. The video includes a good view of the existing exit road that is sitting across the middle of what will be the multi story car park. Every time I watch it or freeze the action I see something new.
https://vimeo.com/152978300
Found some build dates.
Main terminal extension
Start date January 2016
Completion date September 2017
New Pier link
Start date February 2016
Completion date October 2016
New Pier
Start date July 2016
Completion date December 2017
Baggage reclaim
Start date August 2016
Completion date December 2017
timeline map found here
http://www.internationalairportrevie...opment-begins/