I think it's highly unlikely that the writers of Star Wars in 1977 were not planning to explain Darth Vader's line in the beginning of the movie until the launch of comic books in the 1990s, or video games in the 2000s, especially since the Atari VCS was not even in stores during the filming of Star Wars, let alone plans for an Xbox game or MMO.
No, they were writing about a story that had a mythical past and future which they planned to explore if this film went anywhere. If it didn't, well, they'd just throw it away, make the Alan Dean Foster novel into a movie to recoup some losses, and walk away.
No, there wasn't. None of that was in Star Wars in 1977. I like how you keep writing essay length posts that are all built on the assumption that decades later, tie-in novels, comic books, and Xbox games were all being foreshadowed by lines in a 1977 movie, and the scenes in the movie itself are all purely incidental - in fact, by your telling, Star Wars is an incoherent mess of a film, and nothing in it really makes sense until it got contextualized by the Xbox 25 years later.
False. What Vader meant was that what we do see of the Force in the film is just a small taste of it-which, if taken from a religious context, (Lucas is Buddhist-Methodist) is akin to saying that the miracles we see from things like the Bible are just a small taste of God's omnipotent power. Which, given that the first movie is again, just the story of David vs. Goliath in space, makes perfect sense.
And again, the OP shit came not from Xbox games, but from the comics and novels that came out not too long after the OT was finished. The major storyline after ROTJ was the Thrawn Trilogy of novels, which introduced Battle Meditation, one of the OP powers I was talking about. Right after that came Dark Empire, a comic series which introduced the Emperor possessing clones with Essence Transfer and destroying fleets with Force Storms. Then right after that, we had Tales of the Jedi, a comic series which had the Sith doing things like projecting large armies of illusions and blowing up star systems.
NONE OF THESE THINGS CAME FROM THE VIDEO GAMES. I just love how you keep going back to "hurr durr video games" when the OP Force powers didn't even come from there-they came from the novels and comics which were the early Expanded Universe works. This wasn't like Legacy of the Force or Republic Commando where Lucas barely cared by that point since his focus was on the Prequels, this was early in the Expanded Universe where they still had to check off with him on their ideas and concepts.
The Thrawn Trilogy was the first major EU work that picked up the story after Return of the Jedi-billed as the official continuation of the story Lucas wrote in the OT. Then right after the Thrawn Trilogy, came Dark Empire, a comic series Lucas had direct involvement with, seeing as how they originally just wanted a Vader impostor using superweapons, but Lucas canceled that plan and told them to use the Emperor. Then you had Lucas green-lighting the Tales of the Jedi comics, which again, had the Sith using OP Force powers. Again, it's not from the games, but rather, from the books-books that Lucas personally approved of or even got involved in, meaning that OP Force powers
were a part of his vision.
The most you can do in the video games is pull off Prequel-style things like jump real high, move real fast, or douse someone with lightning. Which, obviously Lucas WAS a fan of that stuff, since he put that stuff in the Prequel movies.
Like it or not, Lucas IS the heart of Star Wars. And he approved of OP Force powers in the novels and comics which comprised the early parts of the SWEU when it first started to get off the ground. Meaning that what Vader told that admiral was literally proven to be true in the early run of the SWEU. Vader wasn't being metaphorical, and Lucas proved that in the major works he approved of to continue the story after ROTJ came out. Next thing you'll tell me is that Lucas doesn't know shit about the Force and it's actually someone else's idea that Lucas just mangled.
I just love it when people have their own fanboy vision of things from Star Wars like the Force and insist that the creator of the story knows nothing about it.