Okay, so i know this is a pretty common thing, and it didnt bother me at first, there were 1 or 2 misc quests that were uncompletable to me, either due to the character i was told to go to being dissapeared due to stormcloak/imperial differences or simple glitches, but its starting to get slightly annoying now... is it possible beth will release patches to fix this.. or is it pretty much impossible to get rid of them from your misc list due to quest tracking difficulites or something?

I don't know the programming reason, but AFAIK, they will remain in your journal indefinitely.