Does Usopp Become Stronger. Hes not an unstoppable force like the monster trio but he can hold his own and easily beat lackeys and puts up a fight against higher ups in enemy crews. Oda said at one point i dont know if he still intends for it to be the case though that usopp will always be the weakest member of the crew.
While not typically considered as one of the Straw Hats strongest members Usopp is still more than capable enough to take down some powerful characters. Pre-SE Legend Usopp is an interesting utility unit. Hes more about overcoming his weaknesses and insecurities than losing them altogether.
As the show progresses Usopp with the rest of the crew would go on a tough journey together getting stronger from a coward to finally becoming brave.
No but he does become a god. Not all of them though. Well Usopp will never be as strong as the likes of say Luffy Zoro or sanji but he does get strong in his own right. Yes after training for two years during the time skip.