At the risk of coming across as being cold-hearted and self-serving ...
Hey, from the sound of things (and I'm VERY far away from the sources), it sound like it's already a done deal.
In many ways this is a good thing for OpenACS, in that another competitor (a high-profile one, at that), looks to be going away. It remains to be seen whether any continuing work would be done on the ACS toolkit. However, based on the rumors, the answer looks to be "no". In that case, there's one fewer actively maintained open source collaboration system. OpenACS is a strong competitor, and it has done well on its own. We'll probably see a pick-up in interest in this project.