so, i have a pc of former twin jimmie hall. he had cards produced from 1964 through 1970, and so i've been adding some buybacks over the past few years. this year, i was able to add his 1969 topps card boughtback and stamped as part of 2018 topps heritage
just as i had done in 2017 with his 1968 topps card
so it seems that there is a hard stop on my pc. that assumes that hall is not included in future archives releases which is probably a decent bet. hall still has fans here in minny, but the only way he would supplant the likes of oliva, carew, or puckett on the checklist is if he were to be part of the autograph checklist, and even then there are other fan favorites like hrbek and torii hunter to consider.
i added a regular ol' vintage hall card not too long ago for my 1965 topps set build