I know this may have been suggested before, but I’m too lazy to necro one of the old threads so…
Add a weekly leaderboard to the treasure map system. Count in it the total number of moves/highest ammount of vaults/whatever.
Not just that it will bring some life to one of the most ignored game modes (after arena), but it will offer a skill-based opportunity to earn some gems and orbs, as opposed to the existing leaderboards, where its either heavy investition (regular event lb), or sheer ammount of time/account sharing/automatisation (pvp lb) that decides who gets the orb.
There’s little actual skill involved in playing 16 hours/day (pvp lb) or spending gems on sigils (all other lbs). While treasure map results are mainly skill based (with a flavour of rng, of course).
To say it in other words, a treasure map lb gives an alternate way to get those power orbs, without unhealthy time spending or money involved.