The last thing Jordan wants is to absorb 2.5 million nutballs into their population, and no inducement will be enough to get them to change their minds. (Remember Black September?). So you can forget that idea. Israel would have to force the Palis upon the Jordanians. ...by driving them across the Jordan River. Of course that's a major war scenario, but one that's increasingly becoming less far-fetched by the day.
Another plan (as George Will outlined in the article I posted in #29) is to drive the Palis to the Eastern half of the W. Bank and then build a wall to keep them out. Of course Jordan would be guarding their Western border to keep the Palis out of their nation as well. No one wants them, and for good reason.
The Arab nations, using the Palis as pawns both to redirect the attention of their populaces away from the corruption and tyranny at home and onto an external enemy ("The Zionist Entity") and to create a forward army on the front lines of their war to destroy Israel, have created a monster.
I read the George Will article you recommended, and as usual with Will, I was impressed. He might well be recommending a reasonable solution except for the problem of the Muslims within Israel already. Now I am not sure of this, but I assume they are already citizens and it would be difficult to just remove them. Or perhaps they identify themselves as Israelis first and Muslims second, so their desires are not the same as the Palestinian Muslims (I am sure this must be true to some extent). But most writers seem to feel that there will be a crisis when the Muslims of Israel outnumber the Jews, and Will’s short war and secure walls won’t solve that problem.