So I am going to assume that they find out what Project Daedalus is: a time transporter. They are still fugitives and so will have to race against time to get someone in the chair to 'beam' into the future and try to gather info or help set up a resistance from that end. If we go by the preview, it looks like Michael is the only one sent ahead. It also lends credence to the idea that the presumably rogue AI in the future is focused on her specifically. So, in my opinion, this is shaping up to be a closed temporal causality loop. Michael has knowledge of what's already happened in the past (where the signals are going to be, who needs saving such as the New Eden people and herself etc.) and presumably she will get the suit in the future, the means by which those events can be made to happen.
However, I am going to hold out for some nice twists. I really hope "Calypso" and Zora factor into this. If Airiam's memories were uploaded to Discovery, perhaps they help to make the ship's computer evolve eventually. Perhaps Michael will find the ship and learn the story of how it's waiting due to orders and is able to communicate that back to the present crew. So they will know they have to take the ship to the correct spot and abandon it.
I just love the idea of the Discovery from the future being the lynch pin to undo whatever damage the CONTROL AI has done and somehow preventing the Federation (as we know it) from being annihilated.
It would also give some extra poignancy and meaning to Airiam's sacrifice.
I'm sorry, but I would - by far - prefer if the Red Angel was Michael, or someone who knew her personally like Amanda. Airiam/Zora is...well...textbook fanwank. An attempt to link together disparate elements of canon just because "it makes sense" - even if it doesn't actually fit the narrative arc at all.