Does Nocturne need to be buffed?

Our nightmare friend is both a solid Assassin if he chooses Dark Harvest+Duskblade. He is also a decent bruiser if an assassin doesn't fit the comp. But the one thing he always is, is a diver.

This preseason is kind of unfriendly to divers. With the availability of stopwatches, Vayne players, Zhonyas, GA, and just the outright huge amounts of damage everyone does right now. There are many matches where Nocturne finds himself unable to ult anything, because he will just end up dying for nothing. He pretty much needs a squishy target to isolate itself, but that doesn't really happen.

Granted there are matches where he can thrive, so I'm not really complaining just curious of how others feel towards him.

I think his identity needs to be pushed more into a pure Jungle Assassin. with two changes to his W. and a few QoL buffs to his Q.

First the Q, it should grant him vision of tagged champions. Secondly, it should cause him to avoid unit collision so long as he is in the trail.

W- No longer grants bonus attack speed. New passive- Increases the damage and heal of Umbra Blades by 15/30/45/60damage 10/20/30/40healing New active- Nightmare Barrier- Same thing as it his now...BUT if he enters duskblade trail, or casts it while in his Duskblades trail, it doesn't just absorb 1spell. It avoids ALL spells for 2.5seconds.

Ultimately this would keep his playstyle the same, but in those games where he cant really ult anything and have a successful dive. Atleast now he would have a way out via his W. And would be able to force the use of Flash/Zhonyas/whatever, without dying for it.