Oh God no.
This is supposed to be a classic cRPG, where you are actually need to think and figure out how to solve a quest by yourself. Handholding and quest markers would take all the satisfaction and difficulty away. I think the quest log and NPCs give more than enough clues.
On the other hand, quest info should be dynamically updated when new information is given.
Usually, quest info gives enough information to get quest started, but often any new received information regarding quest, especially directions to the locations, are only given in dialogue and never written in the log.
This is really bad, since if player stop playing for a couple of days and returns to the game, he will forget those directions, since they are not written anywhere.