PanAmerican From Germany, joined Oct 2003, 384 posts, RR: 5 Reply 6, posted (8 years 10 months 1 week 3 days 20 hours ago) and read 6715 times:
I would have doubts the livery would have changed much from the latest billboard scheme. If you come to think that the blue stripe livery lasted over 25 years, I bet the billboard would still be around.
Also, Pan Am had orders for the A320 or at least expressed serious interest in the A320 family so this pic would have almost come true as a 727 replacement:
I also believe they would have gone for the A330 as a replacement of their A300s and A310s, and maybe even the A340:
Of course for replacement of their 747s they could have ordered 744s or even the A380, who knows:
I think it's very unlikely they would have any MD-11s, 767s, 757s or anything along the lines. Regional jets however might have been possible.