I guess you can just wait for them to get fixed at some point and do them no matter how long after? I never went back to do the quest on the boat that bugged nor have I been wondering about it either really.
But I gotta say this life after hitting 50 is a bit tedious sometimes. Unless you run doing public dungeons and skull&swords etc in a group, the veteran rank levels up reeeeally slowly. Been doing only the Ebonheart first areas for days now and some ganking and skyharding in Cyrodiil and I'm finally now almost hitting VT4, it takes about 1.30mil veteran points from 3-4. So compared to the group running thing where I gained first couple VT ranks in a matter of hours, this normal questing a)takes long time to get VT up b)can be hard with multiple mobs if you run alone, totally different than when leveling from 1-50.