The probability that the next flipped coin will end up on edge is still 50%. The fact that six out of one million coins landed on edge is a statistical anomaly. It does not mean that the next coin is more or less likely to land on edge.
A coin flip is a random event, and each flip is independent of the previous flips. This means that the outcome of one flip does not affect the outcome of the next flip. In other words, the fact that six out of one million coins landed on edge does not mean that the next coin is any more or less likely to land on edge.
The probability of a coin landing on edge is very low, estimated to be around 1 in 6,000. This means that if you flip a coin 6,000 times, you can expect it to land on edge once. However, the probability of a coin landing on edge is still random, and it is possible for it to land on edge more or less often than this.
In the case of the one million coins, it is possible that there was something about the way they were flipped that caused them to land on edge more often than usual. However, it is also possible that this was just a random occurrence. Without more information, it is impossible to say for sure.
The important thing to remember is that the probability of a coin landing on edge is very low, and it is not affected by the results of previous flips.