The course is extremely interesting isn't it? So much to learn! You are correct, it is a lot of work and I'm glad to hear that you have liked it so far. Even though you may not be able to finish in time, you could still do the course at your own pace (that's what I'm doing, although it's going somewhat slow). There has been talk in the course discussion that the materials/information will be available even after it is finished, so that is nice.
I can't get over the price; an MIT EECS course absolutely free. I would encourage you and others to take advantage of that, though I know that finding the time can sometimes be difficult.