I think they chances of Burke falling below 8 are actually rather likely.
From teams 1-13, there are only 3 or 4 teams that would draft Burke. The Bobcats have heavily invested in Kemba Walker. The Cavaliers have Kyrie Irving. The Pelicans have Vasquez. The Kings have Isaiah Thomas.
The Wizards have John Wall. The T-Wolves have Rubio. The Blazers have Lillard. The Pistons have apparently not contacted Trey Burke for an interview, indicating that they may try to re-sign Calderon or simply hand the team over to Brandon Knight. The Sixers have Jrue Holiday. The Raptors have Kyle Lowry.
That leaves the Orlando Magic, the Phoenix Suns, the Dallas Mavericks, and maybe one or two of the teams with a point guard who is merely sufficient or is on a short contract like the Kings or the Bobcats.
If the Magic get the #1 pick, they'll almost certainly take Noel. They're looking to replace Dwight Howard, and Noel is a defensive juggernaut. If the Magic do NOT get the #1 pick, however, they will most likely draft Burke. The Bobcats have Kemba Walker, and I don't see them drafting another point guard with him and another solid option on the roster (Sessions). The Phoenix Suns already have Goran Dragic, but they might look to the future with Burke. I don't think it's likely, because Dragic is under contract for another 3 seasons, as is Kendall Marshall, with a hefty chunk of salary tied up in both (not to mention another year with Shannon Brown under contract). The Kings have Jimmer and Thomas under contract, but the front office and coaching staff seem to hate Jimmer, and Thomas could definitely be improved upon.
I think if the Kings pass on Burke, he won't be drafted by anyone (Pistons, Wizards, Wolves, Blazers, Sixers, Raptors) until the Mavericks at #13. If those teams start to pass on him, the Jazz should seriously consider moving up before the Mavericks do.