Guild Wars 2

Personally I would consider something like:
- Sword offhand, to create another non stealth option in the dueling theme.
- Mace mainhand, to add a more thiefish stealth style without being assassin-like,
and pistol offhand for high cc, sword offhand for umm something unique.
Mace would be a very slow weapon, slightly heavier on initiative, successfull stealth attacks (sap) cause a 2 seconds stun.
- Longbow, high range, single target based and access to stealth to make it more unique
as a ranged option that benefits from shadow arts.

To see all this at the same time would be too much. I wrote all these
pretty much from role-play perspective, didn’t think through much
how well they could be implemented to our class.

So what about you other thieves?

Rifle. We are in serious need of more ranged options.

Wakizashi, Kunai and Kusarigama.

Rifle to snipe, Torch to raid the tombs, and Whip to perform our acrobatic stunts.

staff so we can have a 2h melee option, rifle as stated above for 1200 range, the ability to use if so wish just 1 weapon i.e 1 sword with approriate traits included i.e 25% dmg increase or increased mobility endurance regens faster when equipped or something to offset the lack of extra weapon (i.e stats and sigil from it) they already have the 1-3 skills on the weapons anyway.

A mace and Axe would be nice as well Axe mainhand mace offhand, just take a look at what the npc bandits, thiefs can use and give it to us as well.