This has probably already occurred to quite a few people, but for those that haven't thought of it, I would start putting entire stacks of V16 mats to one side to start the HUGE crafting demand there will be come DB release. There is going to be a LOT of people who will go from low vet to max rank over night on multiple chars, and anyone with maxed crafting skills and knowledge is going to be in high demand.
It would be a good idea now to start concentrating on your crafting skills, and work them as high as possible, get as many motifs learnt as you can, and make some bank space available prior to DB release so you can store and save all the materials you are likely to need come release day.
Remember, doing this is going to require a decent pool of skill points, so skyshard hunting can only benefit you right now. Also consider raising PvP ranks for extra skill points, get any major storyline/harborage/mages guild/fighters guild quests done for the skill points they reward. It is around 21 Skill points per crafting tree to max it out.
If you can achieve this, you may even be able to consider making yourself "for hire" come DB release day, and could probably make a decent pile of gold charging people for building armor and weapons.
Xbox One - EU - EP/DC
Trying and failing to hold the walls of his Templar house up since 2015