DANANG, Vietnam (Reuters) - The remaining 11 countries in the Trans Pacific Partnership (TPP) trade deal will discuss a proposal for an agreement in principle to proceed after the withdrawal of the United States, Japanese Economy Minister Toshimitsu Motegi said on Thursday. Ministers from the 11 countries are meeting in the resort of Danang in Vietnam on the sidelines of the Asia Pacific Economic Cooperation (APEC) summit.  We have collectively reached the stage where we can discuss a proposal for a final package for an agreement in principle of the TPP,  Motegi told ministers from the other countries.  I would like to emphasize once again the importance of reaching an agreement in principle right here.  