Let's get back to how we are going to spend New Year's Eve and New Year's Day.
"年末年始の過ごし方の話に戻しますね。"
- Let's get back to how we are going to spend New Year's Eve and New Year's Day.
- Lets go back to talking about how we’re going to spend New Year’s Eve and Day.
Let’s get back on track も使えます。
- Let’s get back on track and talk about how we are going to spend New Year’s Eve and New Year’s Day.
Let’s get back on track and 今何をするべき。
Let's get back to the original topic of how we're spending New Year's.
ご質問ありがとうございます。
「[年末年始](https://eikaiwa.dmm.com/uknow/questions/132438/)の過ごし方の話に戻しますね」と言いたいなら、「Let's get back on track」は問題ないと思います。
別の言い方で覚えたいなら、「Let's get back to the original topic of how we're spending New Year's.」でも可能です。
ご参考になれば幸いです。