Based on Disney's announced capex plan for 2016 from the company's 10K:
The Company currently expects its fiscal 2016 capital expenditures will be approximately $0.8 billion higher than fiscal 2015 capital expenditures of $4.3 billion due to increased investment at our domestic parks and resorts.
And from the company's 4Q2015 earnings call:
We have demonstrated our ability to deploy capital profitably across the company, including at Parks and Resorts. We’ve announced a number of new Parks and Resorts projects that will be underway during fiscal 2016. As a result, these projects will collectively drive an increase in total company capex of about $800 million in fiscal 2016 compared to fiscal 2015.
A Star Wars Land opening date of 2018 in CA and 2019 in FL seems more likely than dates in the next decade.
Of course, budgets and schedules for enormous projects often change so it would be wise avoid undue speculation.
Last month's estimated completion date may not be the same as next month's estimated completion date.