Tristana is still too safe.
At the very lest remove the jump reset ffs. 700 range with a huge range jump reset on kills and assists and having an aoe knockback ult.. I despise her more than vayne. Also if she isn't pushing it's almost impossible to gank her.
All good vs. Trist, especially Vi. When she ults Trist, she can't be CC'd so she gets there for sure. Most Trist's will panic and jump while Vi is still flying towards her = gg.
Some trists are smarter and will save the jump for after, but by this point, she's low health and isn't as effective in fights.
:)