If you are among the lottery winners next week, what will you do?
This sentence has a similar meaning, but uses a verb which allows us to see the difference between indicative and subjunctive moods. "If you be..." is not possible there. The present indicative "are/win" is being used with future meaning.
Well, it's a question, not a statement of fact, but English uses the same 'mood' (choice of verb forms) for both, so I suppose that makes it an indicative question. It contains a subordinate phrase beginning with 'if', but that doesn't affect the main clause.
I agree, ETB and LB. I know that strong arguments can be raised against 'conditional' mood. However, Wiki seems to recognise its existence even though it says it is 'periphrastic'. Whatever the case, I prefer to qualify verbs in conditional sentences as 'conditional mood' as otherwise I have to accept that all type 2 and type 3 conditional sentences are 'subjunctive', which I cannot do. In short, 'conditional mood' seems to be a good catch-all term for conditional sentences.