Looking at the success of Ethereum in 2017, so many new ventures started their journey in order to compete Ethereum. Some took momentum as a matter of fact like Tron and Eos. Other names like Cardano and Zilliqa etc are also running in the race.
What do you think would Ethereum sustain this pressure and retain its leading spot?
Most crypto related new project owners trust ethereum and it also gain the highest community support in terms of smart contract business. With this it will definitely sustain the pressure from opposite smart contract project and it will continue to lead.
How would the Proof of Stake, if implemented in time, work for Ethereum?
The proof of stake it said to be implemented in the mid of this year through Casper which was purpose by the ethereum team to scale their network.
Would Ethereum solve their scalability issue?
The team are planning an outstanding upgrade which seems to be the best out there. I mean Constantinople hard fork>Plasma>Casper>Sharding>Serenity (aka Ethereum 2.0)>Ethereum 3.0(which could take billion of transactions).
Does Ethereum decentralization give it an edge over other centralized smart contract platforms?
Yes, the decentralized in nature of ethereum was one of the reason why it gain much community support than other smart contract platform.