How would we know

For all we know, all of these questions could be answered.

I mean, all of them will most likely be answered except for possibly the Malachor one. But that was already almost answered, she came out of the World Between Worlds back to the temple and then probably stole one of the dead Inquisitors' fighters like Maul did and escaped. I'm excited for this series, hopefully it isn't messed up lol.

The biggest question that needs to be answered is how and when will she and Sabine will find Ezra?

This is probably a hot take and I've never really mentioned it before or seen anybody talk about it but Ezra should really be dead. Nobody, even a Jedi, should be able to be pulled into hyperspace with absolutely no protection and survive. It sucks but him and Thrawn should be more then dead.

The malachor question is answered in star wars: rebels

Aside from that one, all the questions are great