If you look at any P7 exam I think you will find that Q1 is always a “audit planning Q” (single entity or group of entities) and Q2 is usually focused on matters/evidence/procedures. Q2 in the S/D “hybrid” exam does however include the audit of performance information.
So I don’t think this is very likely – also – w.e.f. September 2018 Section A will become a 50 mark case-study set at the planning stage of an audit (for a single entity, group of companies or potentially several audit clients) and “other assignments” will only be examinable in Section B. It is my personal belief that ACCA wouldn’t want to upset candidates sitting the last exam of P7 by bowling them a googly (!)