They'll need to announce the news (as they have done before) and I am hoping that the change (merger) is large enough that they will need to fill out the OTC Pink Basic Disclosure form which will give a decent amount of information (offices, trading symbol, merger details, share structure details, and financial statements). I wouldn't hold my breath for the Basic Disclosure form though.
Another interesting tidbit is that BBRD will need to report to FINRA 10 days PRIOR to the close of the merger. I don't think FINRA posts this information, but I'll keep an eye out.
SEC Rule 10b-17 requires all OTCQX, OTCQB and OTC Pink companies to provide timely notice to FINRA of certain corporate actions, including dividends, stock splits, reverse splits, name changes, mergers, acquisitions, dissolutions, bankruptcies or liquidations, at least 10 days prior to the record date. Companies who fail to report such corporate actions in the required time may be subject to fines up to $5,000.