I think a bigger issue here is that those who want to annex East Jerusalem to Israel have to decide - is it Israel or is it Palestine? If it is Israel, then the 200,000+ Arabs living in East Jerusalem would logically become Israeli citizens with the full right of the vote. If on the other hand it is not Israel, then the annexation is not legitimate ...
Jerusalem suburb of Even Sapir evacuated as wildfire spreads (Haaretz)
from the article: 2,000 Israelis volunteer to vote for Palestinians