Oda wouldn't be that harsh, Nami will get her "Enies Lobby fight" again for sure, she has Zeus now and he will probably be basicly another crewmember Nami will need to work with.
Abou Usopp, its kinda hard to tell
Search in your heart.
How the fuck do you envision Usopp beating the likes of Van Augr and/or Yasopp even by unlocking adv. CoC imbued pop greens?
The "special" thing about Usopp was his sniping capacity and strategies with gadgets to win fights (spill alcohol on Chew then light his ass on fire, then bash his skull with a hammer), use the tunnels to blow mrs merry christmas and mr4, use the dials against Luffy, hide the inflammable gas with rotten eggs smell, etc.
His biggest "win" in the NW is against Sugar. How was the fight? Oh yes. He was beat down to a pulp, then Sugar shoved a tabasco thing down his throat thinking it was poison, then Usopp made a funny face and she fainted from scare. Making opponent faint from scare...oh yes. Like Perona...the gag became the norm.
And how he beat Sugar the second time? By using a ammunition that SOMEHOW mimicked his funny face AGAIN.
One gag victory in the arc wasn't enough? Make it double.
When Usopp used those Pop Greens in the beginning of the TS, I was hyped. "oh man, Oda is gonna create some cool ways of Usopp beating his opponents with these versatile things. And Oda made him buffed AF, so maybe now he can even tank some hits without getting completely destroyed."
What a fool I was...thinking Oda wouldnt go for the lazy route.
Most SH's are a shadow of their pre-TS selves, but Usopp, to me, by far takes the cake as the biggest disappointment.