I believe those claims stem from this one screenshot in reference to the newspaper visible:
The resolution might not be high enough to easily discern what's going on, but that's what is being referred to. With that being said, there's not a chance that this is going to be a one-episode continuation. I imagine that Hata is missing the bigger picture: the elements shown in the trailer is merely a short glimpse as to what's happening, a single event in a larger narrative. A one day event, if true, could be the disruption that drives the events in the continuation.
Further to this, it's as Brother Coa states: from a financial perspective, it makes no sense to only do an OVA given the financial success and warm reception
Girls und Panzer has generated. Fans are going to look forwards to a continuation, and a TV series will easily generate more money than a single OVA. Of course, if there is substantial evidence showing this to not be true, I would be quite happy to take a look. In fact, I'll eat my hat if we wind up with only an OVA.
Finally, as for the armoured train, looks like
someone is experiencing some
Battlefield 1 beta withdrawal
