There won't be, if that's not enough and there's enough player support, the next step would be an outright ban. Any restriction is honestly pretty generous, as it's an attempt to make It balanced. Smogon while it desires a balanced meta, normally will avoid any attempts of balancing anything beyond that. The last balancing nightmare we know of is gen 5, and even now that's still debatable on how balanced it is. Though, it is enjoyable sometimes. The major question is what the people who will end up voting think. And until there's a survey, there's no legitimate way of even having an idea, and even then opinions can change.My bad, there is a third option option being considered/used in the second tera suspect which is banning tera blast.
They can't just continue suspecting something again and again, the thought process in waiting for the indigo disk to suspect tera is that it will be fully complete in it and nothing will be missing, thus tera wouldn't change much after Indigo disk and would be fundementally the same, and if they decided to resuspect tera, even after it got tera blast banned/no ban it would be throwing the effort of those who decided to vote blastban/no ban away.