There is a lot of speculation on starting date of this project. BG still has to submit a Plan of Development to James city County for review. That plan will need to contain some elements of the attraction, but more importantly it will need to show limits of disturbance, erosion and sediment control measures and stormwater management facilities. Once those drawings are submitted they become public and can be viewed by anyone. James City County officials will need to review those drawings. That process takes at least 30 days. I'm sure JCC will issue some comments and revisions, which will take time to address and then a second submittal with another review of about 30 days. This basic process for submittal and approval is approximately 90 days. After approval, there is an assortment of paperwork that must be done prior to actual construction. It is possible to start as early as January, if they submit within the next month.
I'm sure there will be a few individuals who will state that BG is exempt from the standard review and approval process. While BG may get preferred treatment by JCC, they are not exempt from the Virginia Erosion Control Regulations or the Virginia Stormwater Regulations.
Someone should keep an eye out at JCC for new projects submitted for review.