Will RPCS3 include transferring(save files)?

So rpcs3 can already load real ps3 save files from real hardware. Then there is this game that requires a PSP save to run if I understand things correctly, and people got it working by just placing the right file in the right folder.

So I don't know how MGS works exactly but I wouldn't be surprised if it already is working. (Well, not that MGS actually runs, but you get what I mean).