If it stretches out too far, then we'll revisit the issue, most certainly. They plan to release the ACS 4.0 core followed by the individual modules on their own schedule. On the one hand this means the core and early modules should arrive fairly early (fall), on the other it means that the entire toolkit won't arrive for months.
Unfortunately, so much has been redone for ACS 3.3 that it might boil down to essentially a report of the toolkit. Followed by what we know will be a large effort to port over the new ACS 4.0 core and components.
Limited resources have driven this thinking.
Of course, it appears as though aD is willing to pay Sebastian to work on the InterBase port, so perhaps that will be out earlier ...