以下是一些适合写在英语新年卡片上的内容：

1.Wishing you a happy and prosperous New Year!

2.May the new year bring you lots of joy and success.

3.Have a wonderful New Year filled with love and laughter.

4.Best wishes for a new year of health, happiness, and prosperity.

5.Let the new year be a fresh start with endless possibilities.

6.Cheers to a new year and new beginnings!

7.Wishing you all the best in the coming year.

8.May 2024 be your best year yet!

9.Hope the new year brings you closer to your dreams.

10.Happy New Year! May your days be filled with sunshine and smiles.

你可以根据自己的关系和对方的喜好选择合适的内容。