As for the super apostles, which is really a kind of humorous chapter in Corinthians - it is so clear these people have really ticked Paul off!  So we see Paul's defensive and more human side in this spot, I don't believe they are the 12 Apostles.  It seems these apostles are other evangelists which have gone to some of the churches Paul has started and kind of told them "Paul is old hat now and you should follow us!"  Some of the people have been persuaded with this new kind of Christianity that is not quite the same thing Paul is teaching and he finds this dangerous.  I believe super apostles is what the community was describing them to Paul as and this is something Paul finds a bit hurtful and he feels he is competing to gain back his respect and their loyalty.  I don't quite understand what the 24 thrones in Revelations is referring to but that book is dicey since it is prophesy that has not been thoroughly fulfilled yet.