As of 2/20/19, these potential finalists are nats confirmed:
Avon, IN
Hebron, TX
Carmel, IN
Vandegrift, TX
Claudia Taylor Johnson, TX
Leander, TX
The Woodlands, TX
William Mason, OH
Park Vista, FL
Ayala, CA Union, OK
Round Rock, TX
Homestead, IN
Marian Catholic, IL
Center Grove, IN
North Hardin, KY
Lawrence Township, IN
Centerville, OH
From the confirmed/heavily rumored bands that are attending, here's my way too early prediction:
1. Hebron 2. Carmel 3. Avon 4. BA 5. Vandegrift 6. Leander 7. CTJ 8. The Woodlands 9. William Mason 10. Union 11. Homestead 12. Park Vista