I shot 5 rolls of the CT Precisa recently and it's good stuff. I don't know why Fuji made the deal though; it undercuts the sales of a current product. I know everyone says it's Provia (due to edge marking keys) but I feel it's closer to Velvia 100F.

Supply and demand. That's all that will keep any film being manufactured. Worrying about what will happen in the future is a total and complete waste of time. Buy some, stock up, shoot. If your stock runs out and it's still available, buy more. If not, move on. The world doesn't revolve around film production.