I like the gear stacking idea, but I wanted G5th to be rubber awakening tbh
I thought it might be too soon, but Law and Kid have it already so Luffy should too.
I don't think it's time for awakening of Luffy.
There are many reasons behind this
1)Rubber df seems important so I think Luffy's awakening would be quite special so it's possible Oda reserve it for future
2)Oda already gave him too many PUs back to back in all types of haki.
Another G4 which consolidate these powers is need of the hour
3) whenever Luffy got any new PU we always have some sort of training/background info involved.
G2 - lost to CP9 and saw them using Soru
Basic haki - Rayleigh taught him
G4 - inspiration from Beasts on the island when he was training
FS - Learnt fighting kata from Kata
Advanced CoA - Training and used this to unlock Advanced CoC
So his awakening should happen in similar context which is missing rn