I've always thought that no school can legitimately crack the top 100 without having been open for at least 5-7 years, let alone the top 14. I should be able to see how true that is when UC Irvine opens, but I think it will hold. Now if Princeton opened a law school tomorrow, that could make for some interesting ranking developments. So, top 14... I bet they could do it by 2020-2025.
It's actually pretty funny, this topic made me think of a girl that I went to school with. She was a total prestige whore, but was also a highly unprestigious person that constantly lied about everything. One of her favorites (and mine too) was telling people almost all last year that she was going to Princeton for law school and that them and about 20 other schools were offering her full rides because she was going to finish her UG degree when she was like 18. And let me assure you, she was very serious about this, this wasn't just some bad shtick. Of course, I had to hip everyone (even people that didn't know her, just in case it came up) to the fact that Princeton hadn't had a law school in around 150 years and tell them to bait her into talking about law school. Without fail, I'd hear several times a week from several people about how she had told them her Princeton thing or some variation of it. She must have finally figured it out though, because she just stopped talking about Princeton one day and started talking about other schools instead.