Best guess days to 3~4 weeks; betting on the 2~3 weeks.
ASUS:
Maximus IV Extreme {2~3WAY, x8...x8, Marvell 9182 [ASUS typo? 9128] RAID 0/1, Dual Intel LAN, BT}
P8P67 WS Revolution {2~3WAY & 4-WAY Quadro only, x8...x8, Marvell 9128 RAID 0/1, Dual Intel LAN}
P8P67 DELUXE {2-WAY, x8/x8 + x4 open, Marvell 9128 RAID 0/1, Dual Intel/Realtek LAN, BT, eSATA, USB3 Ft Panel}
P8P67 EVO {2-WAY, x8/x8 + x4 open, Marvell 9120 no RAID, Dual Intel/Realtek LAN}
P8P67 PRO {2-WAY, x8/x8 + x4 open, Marvell 9120 no RAID}
SABERTOOTH P67 {2-WAY, x8/x8, Marvell 9120 no RAID, eSATA}
P8P67 LE {cheap}
P8P67 {cheap}
P8P67-M {cheap}
P8P67-M PRO {cheap}