We will not know anything about this until the new MMR is produced and people play them. Some people will want the original some may prefer the remake.
I think the Original pins will loose value for sure. Not sure how much. If there are problems with the remake then the originals will retain value. If the remake is truly awesome then the originals are going to loose value.
Same with CC and AFM. Not sure why they would make AFM now. I think CC would sell another 1000 or more pins if they have the rights and can finish the code. CC would be in very high demand.
AFM restored are about 10K so I just do not see a huge market for this title. MM and CC were fetching high $$$ and at 8K price is right.