Google Account Strategist vs. Senior Account Strategist role

I just wrapped up the interview process for a Mid-Market Account Strategist role at Google. Shortly after, I noticed a Senior Strategist position open up, and my recruiter mentioned I could interview for it without affecting my current offer—though the offer process would be put on hold until I complete three additional interview rounds.

Does anyone have insight into how I should prepare for this role? Will the questions differ significantly? Should I approach my answers differently?