If iit does, I certainly hope it isn't soon, 'cause I just got here a little under two months ago!
Jokes aside, since this is a bit of a heavy topic, I think so long as Kieran Menor continues to host and maintain the site, I personally see no reason for it to go down. And even if difficulties arise with Kieran's maintenance and ownership of the site, the responsibility could likely be handed off to another trusted, willing staff member.