I would love to see larger games. I would also love to see a large play surface and more obstacles. As for play time in tournaments, I found X-Wing to be overly generous, as anyone who has played in a 50 point Warmachine Deathclock tournament can attest to.
Here is what I would love to see:
1) increase to 150 points or even 200.
2) increase in table size
3) increase in the number of obstacles
4) objectives and scenarios, beyond the gimicky ones that come with the expansions.
5) deathclock mechanism.
For those unfamiliar with Deathclock it functions as follows:
Each player is allocated a certain amount of time for the ENTIRE game. This is put into a chess clock style timer (actual chess clocks, kitchen egg times, app on your phone, etc.) Everytime the game is waiting on you, you have your time engaged and your time is ticking away. When your opponent is moving, your time is stopped. If you run out of time, you loose.
How would this work for X-Wing? Simple:
Say for 100 points each player gets 30 minutes of time. You set up the asteroids, then deploy your fleets and the moment the game starts, both player start their timers. Timers are ticking down while you set your dials. Once you have placed all your timers down, you stop your timer. Then, as you activate one of your ships, you start the timer and turn it off when you stop activating your ships. Same with firing weapons.
And then rinse and repeat.
I think the limited time would add a sense of urgency and panic to the game that would really fit with the dog fight feel. Already this is my favourite game, and I have had epic battles where Tycho was weaving and dodging against Howlrunner for like 14 turns, but those turns were slow as we tried to out guess each other and analyze what the best move was. Imagine if you not only had to worry about where he was going to go, but how much time you had left to play? Split second decisions! Like realy dog fights.
This would not be a game I ever wanted to play.