This newspaper story says there are more than a dozen state court lawsuits around New York over whether particular Women’s Equality Party candidates should be removed from the November 3, 2015 ballot. In the meantime, election officials are worried about the schedule for printing ballots.
As of April 1, 2015 (the last tally available), the Women’s Equality Party only had 12 registered members. The other party that was created in the November 2014 election, the Reform Party (which is completely controlled by Republicans) only has 10 registered members. See the state tally here. Thanks to Reginald Neale for that link.