Realistically, I don't believe it would work, considering that 1--the game is aimed at or at least has a large playerbase made up of younger players who would probably be unable to go to a convention full of strangers, 2--there's always the location problem, as people are all over the world, and 3--honestly, Feralheart does not have a lot of active players, and even less players that would attend a convention. It probably wouldn't be that lively of a convention if it did happen, lol.
Otherwise, if a FH convention did happen, I think that would be a lot of fun! It'd be interesting to see the faces behind familiar players and even socialize with them in -gasp- real life. It'd be painfully awkward, but still worth it to meet a bunch of people who have similar interests. And the fursuits/cosplays/etc. would be really interesting to see as well! Maybe even some people with stands set up selling FH-related stuff. Definitely would be cool, but just unrealistic to achieve.