Hell (the place of punishment for the unrighteous) is a once-there-always-there place of punishment. If Christ went there, He would have had to stay there. I don't know whether there are two compartments in Hell (one for the righteous prior to Christ's ascension, and one for the unrighteous), but I do know Christ did not go to the hell of fire, because the Bible never mentions it and for other reasons as well.