The game is completely scripted already, so the wait time will simply be on the final artwork and music to be added. The artwork is custom and must be drawn by the same artist I have been working with. From previous experience working with him, he should be able to complete the remaining artwork in a month.
As for the music, I have a list of tracks I want to use from royalty free music databases, but a license is still required to purchase the rights to use the music from the creators. The music will be purchased as soon as I receive the funds so there isn't really any wait time on that.
Therefore I expect to release the game before the end of December.