Looks like mini-pet collectors are going to be unable to get the Scorchling this year. Aredek posted in the official forums that the Scorched Stone is no longer on the Ice Chest's drop table from Ahune.
It's unclear why they elected to leave it out this year, however it almost looks like it might have been a simple error rather than a design decision. Either way, the historical drop rates for this were so low that most players won't be able to tell the difference. Also, despite this, the Lil' Game Hunter achievement is much more easily obtainable now than it was this time last year, with the introduction of many new sources for non-combat pets.
Still, that's a very cute fireball.