Nah, there are still a few 35mm copies of the original movies floating around. There are people quietly working on bringing them back to life to release them as they originally were, but it's a remarkably time consuming process as the film has degraded so a lot of work has to be put into fixing the color. Not to mention they have to do it very quietly, as a full copy of the original films on 35mm are technically owned by Disney, so what they are doing is highly illegal.
They wouldn't have to go through this work, as I am sure Disney would LOVE the income from new HD versions of the original movies unaltered as fans have been clamoring for it for a couple decades now, but sadly according to most sources after GL redid the movies in the 90s he had all the original stock in their posession either destroyed or locked away in his personal collection to never be seen again.