i think eth still got some life in it. but in the long run its going down but it will take some time.
While microsoft still funding their development, it's very unlikely that ETH will die.
The devs are still active , so dying is still hard for ETH.
The devs are active, the DAO is being brought to life, the financial corporations are building on the Ethereum, and the community is strong. Fertile grounds for investment.
As long as the Ethereum is developed actively, the price will not drop dramatically if there is no flash crash.