I completed the survey last night, I must admit I was a little concerned to see questions about drag racing, dirt, and AI etc, for me that sounds like features that make me think they want to be a Gran Turismo style of game

I understand the need to appeal to a wider audience to bring in more new members, but for me I think iRacing should remain focused on being the ultimate online road/oval racing simulation, that is what attracted me to iRacing in the first place, and I guess thats why all of us here love iRacing too.
For me, I voted/commented on the need to keep improving physics and tire models, adding track evolution and marbles etc. Day/night (and weather) transitions, because well now we can do 24hr races etc it seems a bit...odd having to do them in complete daylight conditions. I know they are already probably working on these things, but for me these are the features that are going to make iRacing the complete racing simulation.
I've expressed my opinion in here before on adding new cars and tracks, and I voted/commented in the survey about adding too many cars, I think any new cars added should be purely added to existing classes, because a new car and a new series for it tends to dilute participation in other series. Therefore adding new tracks is the priority for me.
In terms of the specific cars and tracks I asked to be added, I'm with
@Kamuifanboy and stated a new LMP1 car (for me the Toyota would be nice

), and maybe something like a GP2 openwheeler. Tracks I asked for were the Istanbul/Turkish GP track, and for a laugh I also asked for my local track...Pukekohe, it's a little track but so fast and bumpy and so much fun to drive.