It would be nice to be able to suspend your account for a few months without having to lose your perks, change your callsign, but more importantly, so you didn't have to create a new email address for your account.
You can get your callsign back by a friendly HT person but it would be handy to just have a "suspend account" option. Give people 6 months to come back before the account is permanently deleted.
I've been playing Eve-Online off and on for 3 years and World of Warcraft since it came out. On both I regularly take a month or so vacation because of burn-out...or sometimes I just take a vacation from gaming completely. The summer especially is a time I'd rather be out and about than playing. And then sometimes you just need a few months away to re-experience the joy of a good game.