1. Bolton said that there will be no quid pro quo.
2. Trump and Abbas hate each other. Abbas has already said that he will reject any plan.
3. Abbas is going n 83, is in very poor health and has no obvious successor so he is more or less irrelevant from an objective perspective.
4. An op-ed piece recently appeared in the Jordan Times saying that Jordan never really relinquished all claims to Judea and Samaria although the exact border is negotiable.
My feeling is that Trump is going to suggest some kind of shared sovereignty between Israel and Jordan. This would benefit the Palestinians (as opposed to the PA) in that they will be much freer and more prosperous than under the PA kleptocracy. It might even be that Trump and Abdullah think that they can co-opt a potential Abbas successor with a governorship.