Test it! Make a landing page which identifies the key improvements. Make a demo instance people can try out. Make it easy to install. Offer licenses for business use, free for personal use. Build a community. See what happens from there. :D
You'll either become too overwhelmed without cash to support it and you'll scale back your efforts. Or it'll start generating some real income. (You don't have to use my suggested business model, but it's worked for many open source projects.)
You'll either become too overwhelmed without cash to support it and you'll scale back your efforts. Or it'll start generating some real income. (You don't have to use my suggested business model, but it's worked for many open source projects.)