Open source software never dies. Anyone can enhance, fork or continue promoting the project. All it takes is your time and commitment.
There is one major problem here:
anyone can != somebody willIf anyone can start developing ScriptBasic again then why nobody has? Sorry, but promoting, enhancing, being "project manager" is not the same.
Sure, we can fool ourselves and wait decades for new generations of developers to come (they may even come from another galaxy) and restart all abandoned projects, but what is the chance it will ever happen? 1/999999999999999999999999999999999999999999999999999999999999999999999999999?