Senna is so busted compared to wukong. She can blast him and heal her allies, root him even if he w's, stealth all her allies, and if all that fails, she ults her team. She has so many options to outplay wukong, and wukong only does one thing poorly, and has, what, 2 crappy escape options. Seems like an unfair fight.
A very specific complaint.
From what I saw, Senna doesn't really have the defensive capability to defend from Wukong jumping her herself. Furthermore, she's probably not gonna be very tough at all if her itemization reflects her being a "Marksman". In other words, Wukong's gonna have no problem with just nuking Senna to solve the problem.
EDIT: Actually now that I think about it, Wukong's probably one of Senna's strongest counters. Once again for the reasons above, but also because his Stealth is an easy way to break into Senna's Camouflage, and his Ultimate punishes the enemy team for grouping up around Senna's stealth Camo.
New Wukong will not be able to keep up with his old Assassin kit. After the rework: you will deal less damage you dont have utility or damage mitigation to survive [the 3+ enemies resistance is bullshit and useless] you wont have enough clones to be called trickster you wont have CC to keep up with the high mobility champs
