Alright so after discussion with my friends we pretty much figured out what Luffy's awakening will be or at least what it's likely to be. Now lets use Katakuri as a platform and review what has happened. Spoiler Now here we can see that Katakuri is stretching just like Luffy. That means that Katakuri is made of mochi and is not a simple act of producing it. Spoiler Spoiler Now in both these scenarios Luffy's attack passes straight through Katakuri's body. SO obviously Luffy can land attacks but since Katakuri is intangible this makes it difficult. Spoiler Luffy got his hand trapped as Katakuri countered him easily. Spoiler Now at this moment Katakuri essentially shifted forms. Now he is using block mochi which is clearly of a much higher density. Spoiler This is the hugest hint to Katakuri's powers. Luffy's remarks are the hints I am talking about. First he stated Katakuri didn't dodge. That likely has to do with the upgraded version of CoA he is using which means you cannot use upgraded CoO and CoA at the same time. Essentially it's a blind spot in CoO itself because clearly he did some serious damage with block mochi as Luffy was blowing his hands from the pain. The other huge main thing here is Luffy got a kick in and that surprised even him. Think about it though he has been becoming intangible everytime Luffy throws a punch so why did that connect?? The answer is simple. It's DENSITY. Block Mochi is clearly Katakuri increasing his density which means his defense goes up and offense but his ability to break apart is sacrificed. Essentially Katakuri can break apart and dodge attacks with ease with low density mochi but when he increases his density he loses this ability that makes his body logia like. So now how does this apply to Luffy you may ask. Well it's simple really. Oda has shown us G2 and G3 being useless for a while now. However if Luffy awakens it will be like Katakuri. The properties of Luffy's awakening will match his ability. He won't create rubber but he can increase and decrease his density. Imagine Luffy decreases his density to the point where he is light as latex.. Rather than going up a level G2 will now increase 2 fold and Luffy speed will be hard to match. If he increases his density then G3 becomes much more powerful. Essentially this allows him to control his DF to higher potential and since he can now control his body density he will no longer need haki to hold G4 form. That means it last longer and Luffy will be 2 folds more dangerous.