French language Q&A Forum

The very useful subjunctivisor of Lawless French advises that the verb espérer que when used in the affirmative = no subjunctive (usually in the future tense), whereas espérer que when used in the negative or interrogative = subjunctive. So in this exercise shouldn't it be "Espérons qu'il aura raison"? (as she is definitely affirmatively hoping for this result). Or is the imperative another case where this verb takes the subjunctive? And if so, is this the case for other similar verbs like penser que? And also in the tu and vous forms of the imperative as well as the nous form? Thanks.