I started my step up for a standard (non-F.E.) blower 1080 shortly after the 1080 was released, then cancelled it, then started one again in mid to late July (IIRC - that email is gone) for the ACX 3.0 model.
Got an email yesterday that the step up was approved, paid the price difference after, and I just sent my 980 Ti Classy in today for the step up program. So hopefully next week I'll have a shiny new 1080 ACX!