The terms aggregation now provides an 'other' bucket with a count, I'd like to see the same aggregations performed on the 'other' bucket. Eg if I'm doing a stats aggregation I have stats (sum) for docs with term foo and bar but not for docs where the field is missing or has a null value.

This is really important for analytics type services as all the values must add up to 100% of the total.

There's quite a bit of discussion about it in #5324.