I dont often create threads, but this simply doesnt give me peace in my head.
I ll explain:
We know how the story goes, so I ll just make a quick rerun here.
Luffy sets out to sea, when he is 17 years old. He soon meets a boy named Coby, who becomes his friend but they part their ways since Coby is determined to become a marine and Luffy a pirate.
Coby later on is seen training with Garp and we even seem him meeting Luffy on two more ocasions in both he fights Luffy, or at least tries to.
On first we see him using the Rokushiki techinque to be more exact Soru (previously seen to be used by CP9 - it basically allows you to be extremly fast)
Luffy beats him with ease.
On second ocasion Coby is seen in the war where he stands up to Luffy yet again and he just pwns him yet again with ease, not to mention we also see him being K.O.-ed by Kings Haki. However Coby did learn something new in between as we learn after the war he has the "Mantra" Ability or as we learnt in the last chapter of OP the so called COLOR of OBSERVATION.
So I guess he ll be training it with the help of Garp.
Meanwhile Luffy has became physically stronger, learnt gear 2 and 3 and now is learning to use all three kinds of Haki.
Now as we know Coby has a goal to become a Marine Admiral. Luffy also said, he better does if he wants to stop him. So my question would be. Do you think Coby will ever become strong enough to face Luffy, to hold him off, to be on equal footing with him and so on?
Also will add my opinion.
Since there will be a 2 year break in OP both characters will have the time to improve their skills and strength, I believe Coby will become stronger and one day (doubt that in 2 years) will become a Marine Admiral. But I dont think and I dont even wana see him ever being able to even touch Luffy.
We all read Mangas we all know how it works for the most of the time. The main characters have the best potential to grow in strength in story and they also learn the fastest. So seeing how Luffy is already years ahead of Coby in strength I dont see him ever catch up and will be very disapointed if it happens.
For all I care Coby can at the end of manga reach his dreams and becomes an Admiral, I wouldnt want it to happen sooner. Firstly because I dislike Coby and secondly cause it would be somewhat unrealistic for me. If Coby becomes an Admiral than he is one of the 3 main fighting powers of the Marines and it is kind of expected from them to be able to stand against the strongest pirates (including future Luffy) as I explained it would feel cheap to me if suddenly one day Coby is able to fight Luffy and endanger him with his strength
So thats that.