No just the usual clowning Luffy. Chibi Luffy ain't gonna do shit and will be used as a hype tool left and right. Conveniently, he won't nullify the effect by using haki like Law did even though his haki is above Law. Oda always finds a way to go retarded with SH most of the time, especially Luffy.
That's my biggest fear for this arc right now tbh, cause everything else looks great and very promising, obviously only if she really turns them into children and not the other way around.
Chibi base Luffy<<<<<<<<<<<<<<<<<< (eternally) <<<<<<<<<<<<<<<<<<< Adult CoC G5 Luffy and everyone knows it, so hopefully Oda won't do that shit.
But while writing this I got an interesting idea. He could go for all out Chibi Luffy and show us G5's real power, like Gomu no Giant Snakeman or stuff, while it's much weaker than it normally would be, but still super powerful. Would be a clever way to tease his full power for his PK fight.