Personally, based off the current leak images. I could se the idris fitting 8 fighter with some un reasonable amount of perfect landing. But I do believe we could fit 6 hornets staggered. I mean, it is space so you don't have to worry about gaining speed for take offs. and all the fighters currently can vertically take off. But the 36 p-52's would be crazy to see come flying out. They did say the auto landing would hard cap at 3-4, but you could also manually land more. so its not unreasonable to say 6 hornets or cutlasses. however, 8 would require some amazing piloting so.... till then.
TL:DR
You can fit 6 hornets, but not 8