Eh...all this talk about Gwadar and Chabahar are just wish-wash right now. Gwadar was supposed to become operational a decade ago, but to date it can't even compete with Karachi in terms of how many commercial ships actually utilize the port. The recent 45 billion dollar promised investment from China might change this, but again, it's really up in the air. There have been many rumors of the Chinese using Gwadar as a naval base, but again, nearly a decade after inauguration, there hasn't been much Chinese naval activity in that area.
Chabahar will very likely go down the same path. Assuming that port actually becomes operational, what incentive is there for ships to utilize Chabahar or Gwadar versus the massive ports in the Gulf countries? Naval bases sound awesome, except they don't generate nearly as much revenue as commercial ports do. It also won't make much financial sense for either Iran or Pakistan to build a port just so a foreign navy can utilize it.
Lots of people thought China's 9 dash line claim was silly and a lot of hype as well, but then they started the man-made island construction. People thought economic ties would keep tensions raising further, but that has not been the case. PLA Navy is very young in blue water Navy standards. I don't know about the circumstances before China's involvement but China's involvement changes the potential factor by a lot. Planners from all around will have to take it into account now.
Except that took place in China. The Chinese can do just about anything in their own country....in Pakistan, not so much. Also, most of the 45 billion dollar is pledged. It is to be seen whether even half of that is delivered to Pakistan, and judging by how often international donors (including China) pledge developmental funds to Pakistan yet rarely pay the full amount, I'm not very optimistic...
The 9 dash line area does not belong to China.
Fortunately, China's economy is on the slowdown. So they may not be able to pursue stated plans with the port. We'll see.