What I would suggest is to set up a trello board, so we can vote on the most important features, this way everyone can see the progress and where you can focus your available time. Second is to encourage other programmers from the community to contribute to the project. For instance, I am more that willing to help you with the code beautifier - I want that feature so much. I know that working with multiple people's code at a time can be a drag, but on the long run, I think it will worth it. As for SI3 becoming the default Unity editor, I have my reserves and doubts - if it remains a package in Assets Store, you can push improvements faster than Unity updates.