Maybe I'm too romantic about this, but I would wish, that DCS would acknowledge the importance of a persisting world and the role playing aspect of the sim more. By persisting world and role playing I especially mean the aircraft and its connection to your virtual pilot. What I mean by that is, that you could individualize your aircraft in a variety of ways;
#1 persistent weapon profiles
#2 persistent Display settings
#3 persistent avioncs/radio settings
#4 not that important, but an easy/ad hoc way to write your name on the canopy or change the tail number would also be nice.
#5 (which would be really awesome) you could have a couple persistent aircraft from the same aircraft type. Like the aircraft from A2A simulations https://a2asimulations.com/ it would "remember" everything you do to it and how long it had been operated(without maintenance). If you treat your aircraft well, it will fight and fly well. The thing is, you would really have to keep your eyes on the gauges, or something you do to your aircraft today could kill you tomorrow. You would not only have to keep an eye on the gauges whilst you are flying your aircraft, you would also have to keep it properly maintained. Engines have to be overhauled and tires and brakes have to be replaced, etc...
PS: I hate it when virtual aircraft are used like they are a throw away product. Not because I'm irrationally attached to a soulless virtual machine, but because I don't only want to know how to fly an aircraft, or operate its weapon systems and its avionics, I also want to know how it feels to be a (fighter-)pilot and this aircraft I'm in is actually worth millions and I fly it since months or even years. Or in other terms. I want the stakes to be as high as possible when I'm going on a mission. The most important thing is ofc that I don't die, the second most important thing is, that I bring the aircraft back home to the base and only the third most important thing would be to achieve all the mission goals.