Yes we had some ideas with the dice, but some didn't flesh out & others we didn't have enough time for. If they look like a last minute edition that's because they were haha. Most likely expect them to be removed from the expanded version.
Personally I really liked the dice rolling, I felt that it tied in well because all the previous levels taught that rolling around a corner (e.g. left, up, right) changed the direction the cube was facing. I used that technique to solve the dice rolling problems and get the face i wanted. Perhaps if you teach that technique more explicitly as a tutorial and then connect it to the way you manipulate the dice, the mechanic will be more clear to players?
Regardless, great level and puzzle design :)