IMO Aeternity will solve the traffic jam in ETH network, Ae is the future, it has more txs per second.
I think so but it will take a long time before projects will move to a new blockchain. I hope that Aeternity will be successful in building the ecosystem and attracting new projects to be built on top of Aeternity blockchain. Aeternity has definitely more advanced technology and better scalability but the network effect will play a key role in the success of the whole project.