And what about GWE, Boston sprinter and New York-Trenton? Licence has expired for those routes and they aren't discontinued.
From what I know, it's what the licensor requested. GWR was apparently fine with the content available on sale, Caltrain however not.
dont forget about SBB rivets zentralscheiz still has stuff on the stadler flirt which SBB doesnt allow anymore but rivet didnt remove them and its still on sale
I don't think NJT and Amtrak licenses have expired for TSW. Hopefully when the time comes for them to get renewed, that they get renewed so we can continue enjoying Amtrak and NJT content