Thanks.
After submitting the DS-160 and going through the USTRAVELDOCS site for the fee payment and interview scheduling, there was a general questionnaire (some of which are specific for those who reside in Bahrain) that determined the application was eligible for a renewal without an interview, though of course they maintained we might be contact for an interview at any time and that we wouldn't be allowed to schedule an appointment as it stands. And the questions included:
Is the applicant applying to renew a B1/B2 visa that has not been expired for more than 48 months?
Do you and everyone applying with you have a prior 5-year (or full-validity for your nationality), B1/B2 US visa?
Is your visa, and the visa of everyone applying with you, still valid or has it expired within the past 48 months?