First things first. This is topic is not to create a FUD rather a true talk to what is happening right now.
Can bitcoin get a hold to its investors to stay on him and keep believing on the power of the king?
For me, I can feel that investors are now turning their back against bitcoin because of this main reason. Tx Fees are very high and slow. It is not practical to be used on daily transactions which I think the first purpose why bitcoin was created.
Once more vendors start to accepting bitcoin the practicality will be in motion. As for fees finding the best trading platform is crucial. Since cryptocurrencies are still growing there are yet many flaws to be tackled in the coming years. But eventually even if btc ceases to exist altcoins will grow on a large scale.