In theory every time a hard fork happens there's some chance of getting a new coin. It depends on the miners. If some miners refuse to start mining the new fork, they can always stay mining the old fork and give the old coin they mine a new name. But that's just in theory. There's no different groups with different ideas fighting over future of ethereum. So unlike with Bitcoin it's very unlikely for Ethereum some miners will continue to use the old fork. Especially because the fork will make mining difficulty lower. Why would any miner hater mining more ethereum with the same hardware and power consumption and rather stay on the old fork.