Veteran Lemons into Veteran Lemonade

They don't have any mechanics that are strong enough to be good in arena. They don't have resistance or rebel tags, so they don't really fit into any Light Side TB squads. They somehow are not the pilots of the Episode 7 Falcon. Rancor and Galactic war can be completed by individual characters now. The AAT is doable by two or three teams, and they don't have any mechanics to work well in it anyway.

They're objectively okay characters, but as the game stands now, Dark side TB is the final frontier, and they can't be used in it. Guild vs. Guild will find some marginal use for them, but that's the best we can hope for.
If you really want to give them an opportunity to shine in arena, they would need to be in a squad where they can survive a long time, take damage, and then be cleansed for when their turn rolls around, if ever, given the amount of TM removal/Stuns in the current meta. This basically mandates a Barriss based squad, but that's already three spots, and you have no overlapping synergy between them, given their awful scoundrel only tag. They could have had a shot with Resistance or Rebel tags.

:/

for fun mainly