The Gatchaman Crowds Blu-ray box set is currently the best-selling anime on Amazon Japan, and the ninth best-seller in all genres. Four months before it comes out.
Interestingly, the only merchandise available besides the music CDs are cosplay school uniforms and wigs. You too can be Hajime or Sugane, or have hair like Joe. A “design works” book is coming in October, but the usual quick tie-in merchandise is missing.