I read a great article on SK and possibility this morning. It is especially useful since I am reading Sickness unto death. Anyway, here is a quote:
The important step for Kierkegaard is the concept “before God”. This is a Christian concept. He sees this actuality, standing in prayer before God, or becoming contemporary with God, as the highest for any Christian. Here the possibility of the offense is present, and must be ever-present. But here also the possibility of being able to become a believer is present and is ever present.SK & Possibility
The great risk in possibility is also the risk in faith.