Not much, apparently. I am finishing up facilitating the final week of "Introduction to Liturgy" for University of Dayton VLCFF - and in this last session, it's kind of Q & A time about liturgy. I asked if anyone wanted to know anything about the upcoming changes in the Mass - and got the message board equivalent of blank stares. Not one of them had heard the changes are coming. These are mostly Catholic school teachers and catechists - and apparently no one in their parish has yet mentioned this to them.
Further evidence that we have a lot of work to do in catechizing people before the new translations become widely accepted.
I will be interested to follow my students' discussion over the next few days to see their reactions to my explanation of what is changing and why.