I think we can mostly agree that the top 4 spots will probably be Leander, the Woodlands, Vandegrift, and Reagan (in whatever order).
Then the next few will be Round Rock, Churchill, Cy-Fair, and Hendrickson. (again, in whatever order).
Then that leaves about 2 spots left, which I'm guessing will be taken up by Bowie, Waxahachie, or Coppell.
Bowie had absolutely insane circumstances last year: from what I heard, they didn't even have a set director until significantly into the summer and therefore were already starting off at a time and design disadvantage. But nonetheless, they had a fairly successful season and a really fun show. They finished 5th at BOA DFW, and made pretty high in Semis in Grand Nats (don't remember exactly). They definitely have the potential to rise up above the last two spots, it just depends on how good their staff is. I think they're definitely going to improve tremendously over last year, regardless. And last year was still a great show.
Coppell I think also has a great chance to jump in there. They also have a new staff in their second season, similar to Bowie, (their new staff is basically all of Wakeland's old directors) and it showed last year. It took them a while to get going (they didn't make BOA DFW finals, and didn't compete in San Antonio) but by the time State Finals rolled around... they had a gorgeous show that was a HUGE improvement over the past few years. Also, from what I can tell, for those involved in the drum corps world, Blue Knights 2017 may or may not be fairly inspired by Coppell 2016. Pretty cool. If they can get the ball rolling a little quicker this year, I'd say they have a lock. I definitely have my eye on them.
Waxahachie, admittedly, I'm the most unfamiliar with. All I know is that they made BOA DFW finals last year in a crazy competition, and made UIL State Finals the year before, beating Centennial and Aledo. Also, they did a Queen show last year that was just a lot of fun to watch. They could definitely surprise a few people- they surprised me last year!
Some other finals contenders: JET, Pearland, Oak Ridge..... I'm so excited for this! Between Conroe, DFW, and San Antonio, this marching season is going to be absolutely CRAZY.