I want to get the deluxe edition when it comes out because eventually i will probably use minis, but not initially; first i want to get all the boosters and boxes.

I noticed Flying Aces comes with 5 planes, the Sopwith Triplane is not a mini in the Deluxe edition. I was wondering if the cards for the airplanes, including the previously mentioned one, will still come with the Deluxe edition.

Not sure if you found your answer already, but no, the DS will only come with the cards for the four planes in it.