I would watch a TNG reboot. I think any new series will not have the advantage of such a large initial audience (nostalgia). However, reboot or brand new, I don't think we see Star Trek until Television finishes its migration to online episodes (on Demand TV rather than scheduled programming). At that time the neilson ratings will lose their importance and shows will be more accurately valued.
That day is coming . . . but . . . its may be a decade before we enter this brave new world of television episodes.
Viewers matter. Whether you measure the viewers by sampling(Nielson) or counting(On Demand), the viewership number drives revenue. CSI will continue to have more viewers than a Star Trek show and will therefore have more revenue potential.