Batman 1989's new sequel isn't the first published continuation of Tim Burton's Batman universe, raising questions about how ...
Flashpoint actually ends with Batman actually shedding tears (albeit off-panel). In that sense, The Flash movie clearly has a framework to do much the same as its comic book predecessor.
Since the reveal that Flashpoint Batman Thomas Wayne had somehow returned to the main DC Universe continuity as part of Tom King‘s run on the Batman title there has been an enduring question: how?