Now this a long shot born of insomnia...so I'm sure it can be easily countered by some who may have more knowledge, but here it goes. I just got done reading The Weapon of the Jedi which is one of the new canon books....so SPOILERS AHEAD.
It takes place in between ANH and ESB. It is written more for younger readers but I found it more interesting and enjoyable than the novels so far. Of course these are supposed to have hints and clues to The Force Awakens. It follows Luke being pulled towards some ruins on the planet Devaron. A creature named Sarco Plank offers to take him but a local girl tells Luke none of his customers ever return and calls the creature "The Scavenger" to which the creature takes issue with. Luke takes the risk. From talking to the girl Luke knows these are the ruins of an old Jedi Temple and after dreaming about (what sounds like a description of Kit Fisto) luke knows a hidden way inside around the Imperial alarms. Once inside Sarco decides to wait on Luke. Luke, R2 and threepio explore the destroyed temple. In the main antechamber statues of Jedi are all but gone and there is an immense hole leading below the temple. Luke manages to use the Force to pull a lever out of reach and it opens a small alcove with training remotes. For 2 days Luke trains and becomes adapt at facing three of the Jedi remotes. Realizing not to try and control the force...but let IT guide him. A Imperial Lieutenant and some Troopers find him and at that moment Sarco comes in as well...wielding an Electrostaff. After Sarco and Luke defeat the Imperials Sarco turns on Luke. Intending to kill or capture Luke for profit as well as the treasures under the temple. Luke informs him the Jedi did not collect wealth like that. Sarco taunts Luke about not being a Jedi by calling him "Nobodys Padawan". They fight and Luke is thrown a bit off guard by the fact his saber is unable to cut the staff. Luke is holding his own but after a cheap shot with a grenade luke was almost helpless. But by staying calm and using the force he survived and the local animals came to his aid by pushing Sarco into the deep pit. Luke, through the force, knows Sarco still lives and kicks the Staff down the hole. He then swore he would rebuild the Order and come back to the Temple. Now, I think Sarco maybe Snoke. Here's all I have to go on. Snoke is of course going to be mocap and here is what Sarco looks like.....
Then there is the name Scavenger that he dislikes. One of Kylo Ren's quotes from the film is "Is it True? You're just a Scavenger." Again, just some rambling thoughts.
