"期盼幸福"的英文表达可以是 "look forward to happiness" 或者 "anticipate happiness."
这两种表达都表示希望未来会有幸福的愿望。"Look forward to" 是一个固定的习惯用语，意思是 "期待" 或 "期望"。"Anticipate" 是一个动词，意思是 "预期" 或 "预料"。
下面是一些英文例句及其中文翻译：
I'm looking forward to a happy and successful year. (我期待着一个幸福和成功的一年。)
She anticipates happiness in her future with her new husband. (她预期与新丈夫在未来会有幸福。)
We all look forward to happiness in our pves. (我们都期待着人生中有幸福。)
He anticipates happiness in his retirement. (他预期退休后会有幸福。)