Obama is a famous liar. He always says the opposite of whatever he intends to do. Too early to rule anything out at this point. And no one should ever believe anything he says. What he says is beyond meaningless.
I doubt he is going to the U.N. Russia thinks he is a joke. Many in the M.E. absolutely hate him. And he has very little support in Asia, Europe, or Africa.
Obama is viewed as an international failure. He has little respect from any country in world. Frankly, he is viewed as being weak and a fool almost universally.
I can't see him getting any support for a U.N. bid other than Iran. And that is only because he gave them 100 Billion dollars, and approved their nuclear program. Can't think of anyone else who likes him.