Yep.
I don't see how the greens could go with national and not lose a big portion of their base.
Opportunity is also the teal party now. It is occupied territory, the greens can't really step into that space without looking a bit daft.
Thus like act, they are welded to the bigger party for better or worse. In my view both act and green should have limited negotiating power, they are never going to cross the isle.