How do we make those who load projects aware that we are almost complete with the Croatian project so we do not run out of Croatian to index as we have in the past?
Here are two knowledge articles regarding requesting projects. Requests cannot be made. But, the project managers and others are always well aware of the status of the project. I'm sure if they have more projects available, they will post them for indexing.
You can email FamilySearch Support that is found at the upper right of your page on familysearch.org homepage. I am sure the Indexing team is well aware of this as well, but they ultimately have the clear picture. Perhaps they will put a new one up soon.