Make no mistake, after the US midterm elections, Netanyahu is going to take the gloves off. He is going to try to make life hell for Obama in any way he can in order to settle scores with him.
One area where Netanyahu is likely to try to make life difficult for Obama is Iran. If there is a deal between Iran and the P5+1, Netanyahu is likely to try to encourage the Congress to vote against the lifting of the sanctions. Or to slow down the implementation of America’s commitment, in any way possible, so that Obama looks like a lame duck.
And this is where the Palestinians enter the picture and are likely to be the biggest winner.
First scenario: Obama tries to settle scores with Netanyahu by not vetoing a very harsh resolution against Israeli settlements at the UNSC. Likely winner = Palestine as such a resolution is going to make it easier to isolate Israel and impose sanctions against the settlements in the international community.
Second scenario: AIPAC finds itself being pushed by both sides (Obama and Netanyahu), so it decides not to get involved or to reduce its involvement in such a scenario. Likely winner = Palestine. As far as the Palestinians are concerned, the less AIPAC is involved in anything to do with Israel, the better.
Whatever you think of AIPAC, it is an American organization. Despite its excellent relations with Israeli governments, its unlikely that it would want to be seen as standing against the President of the US in a long drawn out battle with the Prime Minister of Israel. Such fights are the stuff of nightmares for AIPAC as its main goal is to strengthen relations between Israel and US governments. Publicly taking sides in a fight between the leaders of the two countries would be the last thing it wants.
Third scenario (and the less likely one): Obama does not VETO UNSC resolution which recognizes Palestine. Winner = Palestine.
Whatever happens, one of the aforementioned scenarios is likely to be realized and no matter which one is realized, Palestine is likely to be the winner.