In all honesty though, it depends on what qualifies as a 'national title'. With the way things are going, it's possible BYU pulls back a bit in sports. Instead of making players employees and continuing in the arms race, BYU could go to a D2 type setup. In that case, I think we'd be very competitive
I don't think we end up doing that, but 20 years I couldn't have predicted how college sports would have changed. So it's probably the most likely way to win a national championship in those sports (at a certain level)