Just visited the website of one of the telecom distributors in Belgium.. no sign yet of N9, but the covers are listed!

Official Nokia Soft covers will be available in black, cyan, lime green, magenta and white. Recommended end-user price: 14.95€

Also listed are the following accessoiries:

Nokia Play 360° (black, cyan and white) with recommended end-user price of 149.95€

Nokia Stereo Headset BH-111 (black, cyan, green, magenta en white) with recommended end-user price of 44.95€

Nokia headset BH-112 (black, cyan, green, magenta en white) with recommended end-user price: 24.95€

They all have a recommanded end-user price with good margin, so you should be able to find cheaper resellers

I will do a daily check for N9