If we dissolve the wall, this will reduce the pressure potential back down to zero. Water will therefore continue to flow into the cell from the outside (−0.244 MPa) to the inside (−0.732 MPa). This will continue until

• The cell contents become as dilute as the sucrose solution, or more likely
• The cell membrane ruptures and the cell explodes

The strong sucrose solution will have a water potential of −0.732 MPa. The pressure component is obviously zero, so it's only the osmotic component that contributes, and this is the same as it was in part (1).

The cell will still have a water potential of −0.244 MPa.

Water flows from high to low, hence water will from from inside the cell (−0.244) to the outside (−0.732). The cell will deflate and become flaccid.