Would be awesome to see a BNSF or Norfolk Southern route. Or even an American freight route where you can get to the higher speeds more often instead of being stuck doing 30mph on average around a mountain
BNSF has copyright issues. Well fine in the US, in all other countries the BNSF routes in Train Sim have had to have generic paintjobs.
Union Pacific has lots of highball freight routes across the wide-open spaces, where once upon a time the big steam express freights ran over 100mph. Limited to 80 these days by the Federal killjoys, but there certainly are such routes, and DTG have a UP license.