Creating a better Bitcoin has already been done to death and none of them have the success that Bitcoin has. Its not because they are not better than Bitcoin but because Bitcoin is known as the first cryptocurrency to gain momentum. Anyone else trying to replicate and add to Bitcoin will forever be known as altcoins and will not be as successful.
I don't think so.
Firstly, I can't classify most of the altcoins as being better than bitcoin, they are not! People are used to making wrong design choices. Let's take a look at the top of the list:
Ethereum with its universal machine is just a disaster, an exemplary case of a very bad design choice, state bloat will destroy it eventually let alone Ethereum Foundation and Vitalik who feel free to manipulate it because, they say, it is a project!
Ripple is not even a legitimate permissionless cryptocurrency and bitcoin cash is just a simple and naive fork of bitcoin.
I'm not aware of any alt deserving the label "better bitcoin" and it is absolutely understandable: you can't leave a great innovation behind in just a few years. It's time tho.
Secondly, I'm not proposing an altcoin, this project is about a sidechain as I've introduced it above thread. I'm thinking of a better version of bitcoin that co-exists with it as a sidechain, absorbing it gradually (one-way) while helping it by encouraging solo mining.