I don't have the exact list of cells available right now, but the changes are all quite small, and not near any civilization.
They usually just include a cave entrance being added to a hillside. Or a small ruin exterior. I have tested it along side most of the popular mods, and found no conflicts.
The biggest change would be south of Hla Oad, at the mouth of the river. The landscape itself is barely touched, but that's where the Inn is.
Slight spoiler...
A medium sized ruin NE of Molag Mar, out in the middle of nowhere.
Two new doors in Molag Mar, no conflict that I know of.
A new door in Mournhold, no conflict that I know of.
Those would be the big changes, other than that, just new entrances in the wilderness. I placed them in places where I have never seen other mods touch.
I know it conflicts with http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=7769 which reshapes a lot of the land south of Odai plateau.