I think Ethereum have a great future. It's increase day by day. So I hope it will be increase 3000$+
It is hard to know. There are no limitation in the number of ethereum existing on this planet. Therefore, it will lead us to the big inflation inside ethereum. If developers can not do anything to fix this function, it is hard to ethereum to hit $3000. However, the next step of ethereum looks very good. It will make ethereum become a POW coin which can not be mined with GPU anymore s
There is no limitation. But I heard the inflation of the Ethereum will be slower in the future.