Same goes with Ethereum. Delaying some developments have reasons too but still the support with the coin is still the same. I don't like the idea of delaying such developments with the coin especially if its very beneficial to the community but when you released it on the date and it turns out to be a fail then it might cause the project and the coin to go down. Delaying for the betterment of the project would be better than to releasing it and it becomes a failure.

I don't think that people will get tired of ETH's inability to scale. After all like I said, there are many projects that are under the Ethereum blockchain so there will be users and supporters who will just live on how fast transaction speed of ETH is.