Hello MMOForums!
These are the ICC maps I found on the ptr files, ignore some of the bad cropping on them. The boss locations are mostly speculation but I would say 85% of them are correct. Dreamwalker could be wrong and Rotface/Festergut could be reversed. The rest are basically correct based on the MMO Video preview and other resources.
http://zaneosak.x10hosting.com/patch3_3/icc_floor1.jpg
http://zaneosak.x10hosting.com/patch3_3/icc_floor2.jpg
http://zaneosak.x10hosting.com/patch...c_floor2_2.jpg
http://zaneosak.x10hosting.com/patch3_3/icc_floor3.jpg
http://zaneosak.x10hosting.com/patch3_3/icc_floor4.jpg