Although it is 'possible' to do this, the problem will be when you get to the doorway of where the bathroom joins with a hallway/another room.
It may be very difficult to purchase a ready-made transition piece the correct size to fit over the increased height of the flooring. It is important that a transition piece fits accurately so that it is not a trip hazard. Custom made transition pieces can be very expensive.
The other problem that you may be faced with is that any door- entrance, cabinet, closet, etc. that opens over the flooring may no longer swing smoothly over the new height of the flooring.
Although it is 'possible' to do this, the problem will be when you get to the doorway of where the bathroom joins with a hallway/another room.
It may be very difficult to purchase a ready-made transition piece the correct size to fit over the increased height of the flooring. It is important that a transition piece fits accurately so that it is not a trip hazard. Custom made transition pieces can be very expensive.
The other problem that you may be faced with is that any door- entrance, cabinet, closet, etc. that opens over the flooring may no longer swing smoothly over the new height of the flooring.