The most significant risk is integration bugs, which we are dealing with by trying to complete the individual components as fast as possible so we have maximum time to finish fully integrating.
For chip returning, instead of an individual track for each person, there will be a main return pot near the center of the table where the winning player will have to take their earnings back. The individual tracks add a lot of material to the table that takes up valuable table surface, and getting the chips to go down different tracks has been a surprising challenge, so this simplification needs to be made to make a working project.
Schedule hasn’t changed even with the slight changes.