Riot will nerf Nautilus soon, calling it now

If you watch LCS lately it's pretty much the same 3 tanks 24/7. Nautilus, Maokai, and Poppy. Poppy and Maokai already received some pretty significant nerfs in the past though, so there really isn't much else you can do without completely ruining them. What makes Nautilus strong is the shield he gets from his 'w' (in addition to the shield he gets from COTC). But unlike other tanks with shields, Nautilus has access to his shield exactly when he wants it. Unlike Poppy, who only has 4 seconds to pick up her buckler after she throws it (and the buckler can be destroyed, so there's significantly more counterplay). Also, unlike Poppy and Maokai, who actually need to dive the backline in order to cc you, Nautilus can ult you or hook you miles away (exaggeration but you get the point). Anyways, what do you think? Is Nautilus too strong right now? And it's not just LCS btw. If you look at champion.gg, he actually is the best tank right now.

http://champion.gg/statistics/#?sortBy=general.winPercent&order=descend