I believe Ethereum will collapse:

What makes a currency stable?  It's wide distribution to avoid huge fluctuations from wiping out the market.

ETH is doing just the opposite.  The ICOs are generating $100M given to them in ETH.  Everyone buys and dumps into one person's hand.  Then on to the next and repeat.

Don't you think one of these scam ICOs will just want a quick bailout and dump it all?  Let's say every single ICO doesn't do that, and all projects out there are legit.  They raised the ICO money to develop a project.  They need to fund these said projects.  Now how do they do that?  By dumping millions in ETH of course.  And the instability just multiplies with each ICO.

Sidenote: When you have a currency that chokes on 10,000 transactions in an hour, and shuts down the network at 20,000, how do you expect to handle the world's transactions?