You must meet Christ during your probation if you are to obtain the Celestial Kingdom. If your probation ends prior to having this experience, then it will be because you merit another kingdom. The good news is that the probation continues after this life for those who have not been judged worthy in this life. You will have until the end of the Millennium to be sealed by the Holy Spirit of Promise and receive the blessings of the Firstborn or you will not be resurrected with the just in the First Resurrection and you will not obtain the Celestial kingdom. This is the ENTIRE point of D&C 76:50-70.