Personally I would love to get an accurate US markings F-111 in the SEA colors. Both the first release and the Miss Liberty II hurt me a lot when I found out the color patterns were wrong or the wings were wrong...so hopefully the next one won't have any problems.
My vote goes towards the F-111E 67-0120 "The Chief" - it was the Commander's aircraft of the resident 20th Tactical Fighter Wing that's currently now on display at the Imperial War Museum at Duxford. I believe this aircraft displayed the 1st Gulf War nose art and mission markings. The Chief went through several different designs so if HM were to make this, it should be within 1 time frame, not a combination of a few.
The earliest design was like this:

Prior to 1988, The Chief logo wasn't that big and it had the words underneath the logo, no fancy tail design (this is the one I actually want - something combat ready and not painted up all fancy/pretty)
Later during the 90s, it looked like this:

The Chief logo got bigger with the letters off to the side. They also added the three-color lightning on the tail that symbolizes three subordinated squadrons. US markings became low vis and the tail font got different, it also had some kill markings near the canopy.
Today, the aircraft sits in the Imperial War Museum at Duxford.

It looks much like it did during the 90s with one exception. The left side now features a badass Tiger. The right side still has the Chief logo.
There's a lot of walk-around photos here so HM has lots of reference photos:
F-111E (67-0120) Aardvark Walk Around Page 1
In addition, I really hope HM would give us more weapons (please no more standard Mk.82 bombs). The F-111 can carry a lot more variety and it looks 100x better.