You probably haven’t seen these pictures yet. Here are some first custom RX 470 cards..
Gigabyte RX 470 G1 Gaming OC 4GB
Dual-fan WindForce cooler, RGB lightning, factory-overclocking.
ASUS RX 470 STRIX 4GB
Brand new Dual-fan DirectCU cooler mounted on custom PCB.
XFX RX 470 4GB Black Edition
The RX 470 and RX 480 Black Edition are quite the same, except RX 470 is slightly narrower and has clearly visible copper heat pipe.
Bonus: Sapphire RX 460 2GB Dual
This the same card that was leaked along with RX 470 Platinum edition. I don’t think Polaris 11 requires two fans, but maybe this card features 0db technology, thus larger heat sink.