I don't know if this is a new idea, but I looked! I feel like I can't be the only one frustrated by this.
I would like "Automatically apply grade for missing submissions" in the New Gradebook to default at 0% instead of 100%. I can't think of a single case where I would want to give 100% credit to a student who misses an assignment, instead of 0%.
We have had an issue with faculty not noticing 100% vs 0% and it actually will raise a lower grade to 100%, after the day of submissions passes, too! This is a problem, and I would love to see 0% to be the default and I have to choose 100% instead of vice versa.