Sure. As Ethereum nears the forks, you will see some pretty nice pops (Even today it rose almost %10 in the ETH/BTC Market due to the fork looming in the immediate future. This happens because people know that any Ethereum they are holding will give them an equal amount of the new currency as well as allowing them to hold their ETH... So, if the new currency becomes worth %11 of ETH, then the traders just made %1, see? So it's a very good investment strategy. Of course, after the fork, the currency will naturally be over bought and the price will drop back to it's natural supports. This will happen again near the end of the year. That's what makes now a good time for short term investors. But at this point we are talking about %10 to a maximum of say %40 by the end of the year, which would put Ethereum around $450, $500.
But if you really want my2btcents... I'd say it will approach $1000 by the end of the year. This is due to the forks, along with the general hype of cryptocurrencies right now, followed by the usual end of the year pops as people spend their Christmas money and end of year bonuses as well as trying to finagle taxes for EOY purposes.
All of that points towards a $1000 EOY price for Ethereum : ). If you aren't in it for the long haul, that would be a great time to sell. Of course, I believe that Ehtereum could definitely win the scalability race. If it completes in the near future... It could very well over take Bitcoin : ).
Again, just my2btcents. Take it with a grain of salt.