I think there should be absolutely no doubt as which should be the NEXT.

There isnt a proper 747-200 addon. The only one is CLS which is an old FS9 adapted to fsx with blurred small graphics in VC

Another reason is that the 747-200 is still flying, mainly cargo and some airlines.

Another reason, the 747-200 was for decades the TOP airplane in this planet. Any airline that wanted to feel pride should have one.

Another reason is that the 747-200 is one of the long lasting models, together with the 737-200 and the 727, no other model from Airbus or other manufactured lasted for so many decades.

Another reason is that the 747-200 has one of the safiest records, and any human being that has lived for half a century and boost himself as a frequent flyer or with many passenger hours in his life, would know how much the 747-200 icon has been a presence in the aviation environment.

I am sure Captainsim can find a 747-200 cargo plane to visit and take as model for the next addon. If this isnt going to be the choice, it may be for lack of a possibility of accessing a real one, but there is no other model that can beat the 747-200 in terms of filling a void in FSX