You will not get any Sept, 2006 points - since the resort was not open at that time. You would probably NOT get any Sept, 2007 points - since the resort will not be open by then either - which is why they are offering Developer Points.
While
DVC can certainly modify how they offer the new resort, in the past no Use Year points were available until the resort itself was open and they have not usually "backdated" the points to a time prior to opening. When SSR opened, members couldn't use their SSR points until their specific building was open for occupancy.
When we purchased HH pre-construction, no Developer Points were offered at all. The resort opened in March, 1996 and our first points were available on June 1, 1996 since we have a June Use Year.