Eminger, according to Andrew Gross, has no timetable to return but told the Rangers twitter that he feels like he has some time:
we plan on a long playoff run so there is plenty of timeEminger has played 42 games this season
He suffered a separated shoulder and missed close to two months.
When Emmy comes back he will provide more depth on defense besides Jeff Woywitka and whoever is scratched between Tim Erixon and Anton Stralman. The Rangers are going to need as many healthy and capable bodies as they can to get through the playoffs so Eminger will be a welcome addition back.