From a development standpoint AE has been dead for years. Too bad there isn't anywhere else I can go to. Yeah airsimworld is a thing but I'd doesn't do it for me.
Winglets currently have an effect of reducing fuel consumption, however it would be nice if raked wingtips were also modeled to do the same thing. The 777-200LR, 777-300ER, 767-400ER, And 787 family have raked wingtips and their effects on fuel burn are not modeled to my knowledge.
I really enjoy looking at used aircraft and seeing who operated them previously, but you can only do that with an aircraft in the used market or on aircraft you own. It will be really cool to be able to look up the serial numbers of any aircraft for their info.
*I know AE barely gets updated. I just want to say that I want an update like this
You can change the aircraft ID in the URL when you're browsing your aircraft.
If I have I larger fleet (I usually do), what I do is supply more than the demand, usually about 20-30%. This gives me some nice extra profit with connecting pax. But, if there's competition on a route that's a different story.