I think this speculation is bit over acting. Ethereum for $15,000 just for this year?! I do't think so. I think Ethereum will pump up to $5,000 for this year. I don't want Ethereum to pump that high because its price will off that easily. Its ok to let Eth to take its time to be completely ready to pump. That's why the developers are doing their best to maintain the good composition of Eth until it reach that hype maybe after 2-3 years from now.