Yes, this is also a possible translation. Please use the Report button next time you get this sentence.
What hasn't been done yet? (Maybe closest to the Russian translation) <p> What remains to be done? (More formal, but more elegant) <p> What is there left to do? (Most likely in western U.S.) <p> What is there left to be done? <p> What (else) still has to be done? <p> What (else) still needs to be done? <p> What has been left undone? (A bit awkward) <p> Some of these obviously could be translated differently into Russian.