HoT will be giving us a lot of new things. With those new things some old should be added in also. From GW1 we had the chance to load new trait mix from anyone that created one. That way you never had to figure out what your build would be. If that was brought into HoT that would make it a lot easier for people to try out new builds, post them and just have people import them directly to the game, test, make changes and re post them.
IF this was added in, you could just load up a save and it would give you all the traits needed, all your skills slotted, maybe even give you weapon or armor choices? This would make it much easier for people trying to get the Meta or trying something new out, and post on MetaBattle Wiki.
Just a thought.