They should keep up the demonstrations as long as Obama is hanging the prospect of a visit over the heads of Israeli politicians. I don't think a cabinet is going to formed too soon, except if the White House puts overt pressure on key Israeli politicians. Israelis want a caretaker's cabinet during this difficult period that not have to make the painful decisions that lie ahead. But assuming a cabinet is formed and Obama goes with his visit, the Palestinians should welcome him - ahem - hotly.
Rescuers find 3 more survivors from Taiwan earthquake; toll likely to exceed 100 (Reuters)
from the article: Israeli security forces brace for Palestinian protests