I guess I'm perplexed why people think it will be different this year. The senate led by republicans have not officially adjourned because the republicans have stated on the record they do not want Trump to make recess appointments.
So, forget the House having to give permission, if the Senate has not officially recessed, not even one time to prevent Trump from making recess appointments, why would they now recess before the next Congress?
It's interesting that the 114th Congress adjourned an hour before the 115th Congress convened by scheduling a "special legislative session" for the first week of January 2016, while Obama was still President for two more weeks. Prior Congresses had at least a week between the close of one and the start of another.
-PJ