This is quite an ambitious value but we can never say it is impossible. It is very much possible for eth to reach such value but for eth to reach it tis year is pretty much uncertain. Though eth value is rising, it still is below $1k and that is too far from the said target.
Yes Yes, I accept that 15K is far from the said target, However Reddit founder has made this statement which ETH will hit 15K in this year, Normally there is a weight when some one like him made a statement like that.