The F/RQ collaboration is a big suprise. It only has one volume that of which just recently got translated into english. That one volume seems to have a lot of servants. Many only had small roles and died off screen. Some of these are frequently requested and may get a redemption arc in FGO. Other more popular servants also could appear. So who do you want the most in FGO?
Edit - Your probably wondering why I added so many minor characters in the poll.
The reason is because of the usual nature of the story. My guess the plot of the event will establish basic details of the universe and then bring us to the arena where all hell breaks lose as servants are turned into zombies.
Since major characters might have info that the author might not want to reveal yet, it's possible that popular picks like Voyager, Galahad (Alter) and Longinius are not possible to summon, instead opting to flesh out minor characters like Hannabal and El Cid.
What do you think? Would it be problematic to give away so much info about major characters? Is there a compromise? Do you have a preference? And most importently how will mash being (formerly) fused with galahad fit into this?