Many English learners get will and would confused because they're used in very similar situations. But they're not the same. The main difference between will and would is that will is used for real possibilities while would is used for imagined situations in the future.

Can we use would for future?

We have this in the past tense, simple past tense and then, in that past tense thought, we have some idea about the future and we use Would to express that idea about the future. Let's look at some examples of this though. Here, I knew you would help me. ... So we can use Would to talk about future but in the past.

Will it be VS would it be?

'Will be' is used in situations of certainty and possibility. 'Would be' is used in most imaginary situations. 'Will be' is used to describe actions that are still in practice, whereas 'would be' is used to talk about habits that once were regular but are no more in practice.