They were keeping it hidden all these years so that they could re-introduce it especially for the 75th anniversary and hope people didn’t know it existed.
Well, I have a Chicago and Alton set and a B&O USRA Pacific (assuming that is the loco we are talking about) like Rusty's. Being TMCC fitted with Seuthe smoke units, I am absolutely sure that my previously purchased ones are technically superseded by a new Legacy Pacific. But, owning two samples of the previous engine takes the shine off of the reissues for me. Maybe, one will be able to obtain parts for a partial upgrade of the older Pacific (and Mikado) steamers. I shall look at the new catalog with interest.