"The funding for this proposed line is very much up in the air,” Cornett said. "There are federal grants involved. The state could get involved. We expect these other municipalities to get involved. I’d like to see this line happen, but it’s very early in the process.” If such lines are built, the city will need a place for downtown passengers to get on and off. City leaders are convinced such a transportation hub also would need to connect with the other mass transit services in Oklahoma City. Right now, that means buses. City officials also want a hub that can accommodate a streetcar system if one is funded in the future. The study the city is requesting from the Association of Central Oklahoma Governments would determine the best place for a transportation hub meeting those requirements. The city also is expected to include transit in its plans for MAPS 3. Cornett said the MAPS 3 proposal will be unveiled by the end of next week.