I’ve been going through the exact same internal debate.
The Xbox controller by itself clearly works, but it may require some gymnastics to do it. Until we get our hands on the game, the most cautious answer may be to wait and see.
I decided to pick up a T.Flight HOTAS One and some Rudder Pedals. You can spend a great deal more money than these items but the cost isn’t trivial even so. I got these because I know for sure that they are compatible and i’ve found them positively reviewed as a ‘budget’ stick.
If money is no object, then ‘more’ new Xbox peripherals have been teased for the future.
Watch out though because as you’ll imagine stock levels are under pressure. The Xbox launch could be the biggest surge of interest in flight sticks, well, ever.
Other discussions are suggesting that a wireless keyboard/trackball/pad might also be good to have, but I’m going to play first before making that call.