The real one big issue was status of Jerusalem and nothing else.
The settlements can be removed if actual peace agreement reached and it was part of 2002 proposal, the only real problem with 2002 proposal was Jerusalem and it all stuck there until they all ran out of time. Another smaller issue was the town of Ariel, but that was to be solved by giving up a chunk of Israeli land within 67 borders.
The right of return won't be happening under any Israeli PM, so might as well stop dreaming about it right there. Jerusalem on the other hand, I believe a deal there would be possible, but that's like the pinnacle of it all, there won't be anything without other parts cleared and agreed upon first.
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Pretty much.