The latest patch notes are available and feature a brand new set of marksman buffs aimed at some of the champions struggling most (not including Urgot). Meanwhile, plenty of the marksman killing champions have been nerfed quite a bit, including the instadeleting Kennen and Lee Sin.
Hopefully this allows marksmen to feel a little more useful on the rift going forward when coupled with the jungle nerfs.
Buffs: Draven, Kalista, Lucian, Talon
Nerfs: Camille, Karma, Kennen, Lee Sin, Poppy, Ryze, Shyvana, Syndra, Zz'Rot Portal