We know there are more than 5 levels (I've seen a quest requiring to go to 9th level at least). We know the deeper you go the more expensive mine hole is. We know there are new ores. Some observant person (not me) noticed that each two cave levels are more or less the same both biome-wise and ore-wise. Is it too far fetched to extrapolate that we might have the old 5 levels just split each in two and this world underbelly is 10 levels deep with bloodstone etc starting at 3, black ore etc at 5 and new ores somewhere dunno where (level 7 comes to mind logically)?
Feel free to comment.
