I read the preview on the front page and it mentioned train simulation but a while back i saw the question asked and someone said no trains. So will there be trains or not?

Last I remember was no trains, but they are possible with the sdk.

As I recall, the original plan was to include AI trains in FSX, but due to too many animation issues (such as handling 30+ rotation points in a consist while in a curve!), the decision was made to scrap trains for this version.