Translation of "we won't be able to see you"? 我们会不会看你？
As far as what you mean by see, the above answer is right in that context.  Do you mean meet at a certain time and place?  Do you mean at the moment?  Chinese requires a lot of specific information to be understood thoroughly..as you can probably ascertain, English is a relatively lazy language these days, as a matter of convention and every day speech.

As far as able, it is imho, most likely to be implying 能　or 可以　. 

可以　means does one have permission.  (i.e. Can I see you? [Am I allowed to])
能 means physically capable or able.  (i.e. Can I see you? [Or is something preventing me..time, physical restraints, etc.)

We won't be able to see you:

我们不能看见你。　Means physically unable..which is not a quality or happening that is very likely.  This would more be used in another light, for example:
我们不能看见彩虹。　　This would imply that, perhaps, from your side of town you are unable to see the rainbow that someone on the other side of town could see.  Otherwise, it doesn't really make sense..because if every one cannot see that rainbow, then it does not really exist, does it?

我们不可以看见你..This is another poor choice of word (see), that is where the issue lies.  This implies that we are not allowed to see you physically..which makes for a weird scenario.  It also is somewhat open ended..it could mean a number of things.

You have to clarify what is meant by see, which is probably meet, and from there you can establish meet for what purpose.