Probably won't happen, but I reckon Brian Lake will be a Forward/Defender. Think about it, Tommy Williams, Dale Morris and Lucas Markovic are playing tall down back, and while losing Hall and Hudson, Minson/Roughie could be the new ruckmen, leavig a big hole in the forward line, which Brian Lake could fit into. After all, I remember in the first few weeks of playing in the VFL, Lake was up forward, don't know where he was playing recently though....
I also hope that Hartlett should become D/M after playing a bit off half back by the looks of it, while Yarran and Davis will become Defenders. Hodge as a backman would be very nice...