I think this is a lose-lose situation, which is probably why this show hasn't had a NY revival yet.
Anyone who remotely imitates Streisand's performance will be criticized for it and pale in comparison.
Anyone who departs from her interpretation will be criticized for it and pale in comparison ... although a total departure sounds like it would have a (very faint) chance.
If I were them, I would be looking for a young character actress/comedienne, not a singer. Anyone who tries to "sing" these songs will lose in the comparison game. But they might win, if they have the acting chops and can charm and win over an audience with personality. The singing should be secondary, this time around.
But I agree with Reidel, the minute anybody starts to sing "People," the judgements will be harsh.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22