Normally he's not one for the holidays. However, they actually /do/ have people to celebrate with.
So, he'll be in the kitchen.
His boyfriend's boyfriends are also welcome to come.
// Him feeling really guilty for Jason's death and having to make the choice of telling Bruce the truth or not saying anything and letting him think his son just went missing
// The thought of the the incanon 'Harvey is Batman' theory being true is so funny to me.
Especially if the Robin's are still /Bruce's/ kids.
Cause that just means Harvey steals his bestie's kids after bedtime to go fight crime.