Here is a good piece of news --- you all.（填介词）for,

Here is a good piece of news --- you all.（填介词）for,
Here is a good piece of news --- you all.（填介词）
for,

Here is a good piece of news --- you all.（填介词）for,
for,对
意为“这儿有一条好消息给你们所有人”
另如：Here are some flowers for you.

YES!