会
huì
Expressing "will" with "hui"
The same 会 also predicts the future — "will", in the sense of likelihood.
会 + Verb
How it works
明天你会来吗? asks whether you'll come tomorrow. Here 会 says nothing about skill; it's about what's going to happen.
Context separates the two uses cleanly. 他会说中文 is about ability, 他会来 is about the future, and no one confuses them in practice.
This 会 leans towards prediction and likelihood rather than intention. For a plan you've decided on, 要 is more natural: 我要去.
Examples
míng tiān nǐ huì lái ma?
明天你会来吗?
Will you come tomorrow?
míng tiān huì xià yǔ
明天会下雨。
It'll rain tomorrow.
tā bú huì tóng yì
他不会同意。
He won't agree.