I'm rather uneasy about her revert. I picked her up only a few months ago, so i can't say much about her pre-rework state, but i like her a lot in her current state.
I'm mixed about her revert, but i do see some positives:
Pros:
-Can Max W first for amazing waveclear
-Doesn't have to wait a whole 1.5 seconds for her full burst
Cons:
-Her automatic passive adds a huge layer of safety to LB, which takes some skill away from her kit and offers very little interaction for both the LB player and the enemy. The passive's safety offers a lot of hidden power that has to be taken away from elsewhere in her kit.
-Loss of flexibility from her ult, which also includes her clone. In her current itteration, she has multiple tool choices. RQ for more burst, RW for extra mobility, RE for more CC, and RR to mindtrick people from accross the map. With her revert, you lose most of those tools, and she'll be more about optimizing combos for maximum efficiency.
Her RR clone is one of her current tool that appealed to me and made me pick her up. I feel like by reverting her she'll lose a lot of her skill expression, it'll be all about one-shotting people as fast as possible... again
I'm scared that her revert will displease me and that i'll stop playing her. I like champions with utility, and Leblanc is the only assassin that i enjoy playing. Despite being an assassin, she offered more utility than all others in her class, but her revert will cut that away from her.