What will be the future of collaboration? I’d expect it to be very different. I can recommend you a very good set of reviews of companies that definitely planning to disrupt the space of collaborative software in this post by Scobleizer.
Yes, all these companies are about how to disrupt SharePoint and still very far from design, product development and manufacturing. But, give them time. They will come. So, this is a time to think about them. In my view it will happen faster than usual.