It's also not really necessary.. the quest log and a quick run through the main locations should be more than enough to allow you not to miss out on content... except where choices matter and lead to diverging content, something no walkthrough can fix for you (maybe a mod).
The nr of functioning braincells required to navigate the game is fairly low...
Then again, people keep asking me what "to be continued" means so...
seriously though, making a walkthrough at this stage can't work, simply because there is no way to tell where the various paths will lead, and therefore no way to pick an optimal path....any walkthrough out there is at best a guess..a preferred option for the author of it.