I just opened my set of Rebel pilots. It's definitely a good set. I like the alien likenesses - the Mirialan looks great, and the Duros is even better. The only criticism I have with the Duros is that the only blaster I was able to fit in his hand was the DH-17, and I had to manipulate the index finger in order to fit it in the trigger guard. I couldn't get the DL-44 to work for him. But I think it was a good choice to offer only blaster pistols in this set - even if we did see New Republic X-Wing pilots using rifles when they rescued Mando from the ice spiders on Maldo Kreis.
The pilot buck seems to work with all of these pilots regardless of gender. And it seems like the helmets are interchangeable across all of the pilots. So if you want the human pilots to have Rebellion sigils on their helmets instead of NR? It's totally doable.
Looking forward? I cannot help but think that the Duros head indicates that Hasbro is looking to make other Duros figures in the future - likely for the Cantina. Will Hasbro use this same pilot buck for some named pilots from the OT? I would like to see Hasbro revisit Biggs Darklighter and Garven Dreis. Wedge is already in TVC, but dates back to 2011, IIRC. And Theron Nett would be cool, too, but I don't know if he merits a carded release when slots in the mainline are so precious.