If he plan to "If Israel says in the meeting that it will not accept the 1967 borders and that it is not prepared to discuss Jerusalem and the refugee situation, what is there to talk about?" Indeed borders can not be 1967. No Palestinian can come to Israel unless accepted by Immigration office after applying as immigrants and there is no need to discuss Jerusalem. If that is all he wants to discuss than there is no point in talks, it is all decided.
One student killed, three wounded at Arizona campus during fight (a)
from the article: Abbas: Palestinians will accept only Jerusalem as our capital