I should wait a little longer, if I were you.

假如我是你的话，我会再等一会儿。

《牛津词典》

You better wait a little longer.

你还是再等一会儿好。

youdao

Couldn't you wait a little longer?

—你不能再多等一会儿吗？

youdao

But please be prepared to wait a little longer.

但可能需要你稍等一会了。

I'm going实战 - SpeakingMax英语口语达人

The author of that handbook will have to wait a little longer - as will the two men involved.

BBC: The 'dangling' Lib Dem Two: the latest

Obviously, some airlines who would have put in an order this year are tempted to wait a little longer.

BBC: Airbus delays A350 XWB entry as EADS profits triple

It looks like consumers will have to wait a little longer for the first chance to buy a Kindle smartphone.

FORBES: Amazon's First Smartphone Held Up By Supply Chain Issues