I don't believe there is any protection after 12 weeks from what was posted before. I don't know if a new ballot would cover it. The last online one was only about acceptance of the offer and the last ballot for IA still stood. Maybe someone else can confirm.
I believe the offer for reinstated terms of st is still on the table, but the union is rejecting the offer mainly on that and the sacked membership issues. The rest of the issues seem to be a bit cloudy and not making much sense.