With how 7 Remake is going and how 8 HAD very interesting elements that was held back with game mechanics that worked against each other...I could see an 8 Remake being done in the same vein as 7. Time Compression just makes it work in its favor story wise. So perhaps getting in an 8 story quest even if it isn't a full expansion worth of story would probably help with creating a full on 8 Remake.