For the scene en route to Eadu maybe you could switch Draven’s dialogue around so that he says: “Tell him to proceed with haste and keep to the plan, tell him my orders still stand”. That way there’s emphasis on these mysterious orders but we don’t find out what they are yet.
Here’s a crude version of how it could play out:
https://vimeo.com/507707620
Oh I like that. when connected with removing the conversation with him and Cassian at the beginning and now with this, it really adds more to the “mystery” for the audience.
We see them at the beginning discussing something, but we don’t know what.
This then reinforces that Cassian did get some order earlier, but we still don’t know what.
We then find out later, mostly in line with Jynn figuring it out/knowing.
Heck, later in the movie Draven DOES confirm his orders later, about “a decision needed to be made” so it’s still touched on even later, despite people not agreeing with his decision earlier, aka the air strike/assassination of Galen.