I'm in this boat right now. I plan to take two graduate courses next semester (Micro I & Econ Math) - that's fall of my senior year but only one will conclude before most December deadlines (which are generally Dec 1-10). Thoughts? Obviously my app package would be different for the schools whose deadlines are in January; I'm specifically asking about those due in December.
Do most schools let you submit updated transcripts? And it's more unfortunate for my letters, but at least I can get one from a graduate professor (unfortunately it's not going to be Micro I).