The up and coming trends in fursuits that I can see from going to furry cons: bats and possums are at an all-time high, moths (and other invertebrates) and domestic dogs (specific breeds, not just generic dogs) are on the rise.
I have never been to a furry convention, but there's one in Edmonton in October, and I'm strongly considering XD
I really want to table at one when I get a chance.