Look at the bright side, we won't be impatient for the next episode when anime airs!
I really hope it's two-cour and two seasons. This is one of those cases where rushing it makes the adaptation horrible.
What do you guys think? My bet is one arc for three to four episodes. That way, it can fit in 24 eps. Or maybe they'll take the slow route and have one arc for six eps, which can fit 36 to 48 eps.