Where do black's centre pawns and light square bishop belong in the symmetrical English? I played a rapid game last night and got this symmetrical English position as black:

[FEN ""]
[StartPly "116"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 cxd4 7. Nxd4 O-O 8. Nxc6 bxc6


I found it hard to know where to put my d and e pawns, and how to develop my light square bishop. So, thematically where do black's central pawns and light square bishop develop to and why?
This does not seem symmetrical to me.

After 8...dxc6 you could have reached a symmetrical and very drawish position. 

Playing 8...bxc6 seems more ambitious. Seems like black will want to play d5 sooner or later to get rid of that backward pawn on d7 and to limit the white bishop on g2. Depending on what white does, this might require to play e6 and/or to put the bishop on b7 to support d5 or to a6 to ask white how he wants to defend the c4 pawn. I don't see how the c8 bishop could find any good square along the h3-c8 diagonal anytime soon.