So we want to get younger and the Sedins are reportedly untouchable. So IMO this means...
Untouchables: Sedins, Kass (Young player and just starting to turn a corner), Horvat, Shink, Tanev,
Players we would easily trade if given the opportunity: Edler, Hansen, Higgins, Burrows (Hate to say this, but 0G says it all), Garrison( hasn't worked out here), and of course Booth
Players we would rather keep for the retool, but would still possibly trade: Kes, Hamhuis, Bieksa, Richardson (great 4C), Luongo (only for a good vet goalie in return + another piece)
This of course is ignoring all NTC's that Gillis handed away. But thats my analysis if we are actually trying to get younger while getting rid of redundant/stale players. Start with Edler/Hansen/Burrows and go from there.