IB tests taken in the senior year are never graded in time to be included for admissions consideration. This might sound a little under-handed, but um, don’t mention it and see how it goes? You still have time to get some CAS hours in, though - I would focus on finding an opportunity that is available.
Are there changes to the number of hours or EE requirements? All four of the students who tried for the full diploma my graduating year got it.