I wouldn't say 10. The infrastructure requirements are huge. We need a large stadium and a lot of community support to have a BCS team in the island. something that can hold us back for 10-20 years. But I do see the FBS as the logical next step in the next decade. This can be accelerated by on-the-field success or delayed so its going to be interesting to see what happens in the next few years.
We can see whats going on in other areas of the campus right now, improvements everywhere. its amazes me to see that (hotel, Rec center, more dorms on the way, a renovated arena, a renovated Union or an entirely new one coming up soon, and of course more research investment).