Q:
I have Snaff’s Gyre on one character, but since getting this ascended ring, I haven’t been able to buy it from any laurel merchant since then. Are there plans on bringing this awesome beserker ring back? 
Snaff's Gyre?
Per the Wiki:
The stats listed here refer to the stats of this item prior to the September 3rd 2013 update which removed magic find bonuses from all equipment. The stat combination of this item was deleted, and it was removed from all shops. Players with existing copies of this item can double-click it to select a new stat prefix to replace the original stats. It is also still possible to upgrade it to its infused version (whether or not new stats have been selected).
Snaff’s Gyre was an MF item type which was phased out. You had the choice of alternative stats on it and you chose Berserker stat set.
Your alternative obtainable rings with Berserker statset are:
Ring of Red Death
Crystalline Band