According to Comic Natalie, Blu-ray box sets of Kimi ni Todoke series were announced to be released on September 21st. The limited edition will carry an extra short anime "Mini Todo Gekijyo: Romeo to Juliet 3D".
Prices: ($1 = 80 yen)
1st & 2nd Season Box set: 42,000 yen
1st Season Box set: 26,250 yen
2nd Season Box set: 15,750 yen