We've seen that the BTC Core team is unable to fix problems (or way to slow).
What problems? I see none.
Will the foundation make a comeback? Satoshi Nakamoto?
Foundation is a big no, and satoshi doesn't need to come back (even if she could).
I would have liked Craig Wright to be Satoshi, he would make a nice ambassador.
That would be horrible.
On the Ether side, I see Vitalik Buterin who is smart, young, very knowledgeable, so much that I trust his abilities to find and implement solutions if a problem arise. I have no doubt the scalability issue BTC's facing would have been fixed months ago if he was running BTC.
Nothing more than an appeal to authority at its finest. You should not 'trust' anyone in a decentralized, open-source project. These currencies are not supposed to be based on trust.
So I'm afraid Ether will pass BTC some day, not because of better tech, but because of better and stronger leadership.
A decentralized crypto-currency
is not supposed to have any kind of leader whatsoever.
This. Smart Bitcoiners have already realized that Ethereum offers many things that aren't possible in Bitcoin or that will be available far too long in the future (scalability, smartcontracts, sidechains).
You mean like the smartcontracts that everyone will be obsessed about at the time of financial collapse? ETH has not solved scalability either (technically you can't solve this), and sidechains are already available in Bitcoin.
At first I thought you were serious, but then I realized you're making a joke.. If not, I think you should do more reading and less broadcasting until the knowledge level increases a little. 
