Paper on project without any result - how to conclude
I think the conclusion of a paper and the conclusion of a project are two different things.

In my view, the conclusion of a paper is the summary of the paper while the conclusion of a project is the end results of the project. Your paper has the current state and the future plan of the project. These can be the conclusion of the paper. They are not necessarily the conclusion of the project.

If you don't feel comfortable with having "Conclusion" section in your paper without stating the true conclusion of the project, my suggestion is to write a ""Summary" or "Future Outlook" section at the end of the paper. This is a personal taste, in my opinion.

There are many papers without "Conclusion" section either by authors' choice or the final conclusive results for the problem/conjecture were not obtained yet at the time the paper was written.