I've seen it stated in the past that the world generation looked like pc only scaled down some number of times (don't recall the exact number), but that doesn't seem to be the case at least nowadays. We can generate rough maps on chunkbase; http://chunkbase.com/apps/ but the reliability of the app varies, and I haven't used it in several months. At the time it could not reliably predict the location of structures, but the biomes were correct.
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