there is a site tournament of logos and people submit designs, that is most likely where it is from. As far as i know NYR will not have a 3rd jersey this season. And if they do i hope they move away from the Liberty logo, time for something new.
based on those logos (which I really liked) I made a quick mock up of a jersey I'd propose using the basic template you will find on the internet. If someone else has a better/better ones I'd love to snag them from you.
anyway, here you go, It's old school but at the same time different, hope you like:
I like alternate jerseys in all sports, just because they are different and bring more options. But I do understand why everyone is so hung up on the Rangers jerseys and never want them to change or have alternates.
I wouldn't mind an alternate with NYR as a logo or the classic shield as a logo on the old classic alternates. Nothing too modern or changed too much though.