The series seems to be moving at a faster pace and the future enemies of the SHs are WAAAAY out of their league so they either need lots of power ups, a timeskip or both.
Luffy
-Godly CoC
-DF awakening(typical but obvious)
-G5(typical if he even has one)
-Hasshoukin. Great for Luffy's hand-to-hand style and dealing damage even when his attacks are blocked
Zoro
-Asura whenever he wants to cover his lacking CoO
-A new kitetsu
-Master his flame sword Wado ichimonji and maybe use black instead of blue flames
-CoC
-Being able to use better shockwave slashes like Mihawk
-Mastering "Hawk Eye" that allows him to see his target through a crowd
Nami
-CoO
-Being able to create tornados and blizzards
Usopp
-Better CoO
-Axe dials, impact dials and reject dials
-Pistols and seastone bullets
-A rifle with seastone bullets
Sanji
-Hotter blue flames(Sanji color scheme is blue afterall)
-Blue Gilly's Jet Kun Do
-Ideo's Destruction Cannon
Chopper
-CoA
-Stronger points that he can transform into at anytime
-Fusion points(his arm and kung fu point merged)
Robin
-CoO
-If possible, be able to create clones that aren't linked to her real body
Franky
-CoA
-Seastone arm
-Mini laser beams like Kizaru's Yasaka Nagatama
-Body made out of Poneglyph stone
Brooke
-CoA
-CoO
-Soul being able to posses the living
-Summoning souls of the dead that can posses the dead
