Today MTV New stated:
This got me to thinking. What should happen to John Diggle. If he is not going to become a reinterpret version of John Stewart that what purpose does he serve. Felicity is this version of Oracle, while Thea will become Speedy soon. That leaves Team Arrow with
Arrow
Arsenal
Black Canary
Speedy
Oracle
possibly Wildcat
So what purpose does Diggle serve?
This is my speculation:
John should become the head of A.R.G.U.S., (Advanced Research Group for Uniting Super-Humans), as well as the UN's liaison and take the up the mantle of The Guardian.

It is getting rather silly of Diggle to be running around Starling City fighting bad guys and not wear a mask, costume, or body armor. He has (soon) to be wife and a child to look after.
What do you think?
"It’s funny, I’ve spoken to David quite a bit about this issue, I know it keeps coming up. I spoke to [writer] Geoff Johns at DC after that interview went viral. Basically, John Diggle is now a character in the comics… John Diggle is John Diggle. We’re not being coy and saying John Diggle is someone else, i.e. John Stewart. DC has other plans for that character. We love David, and we love the character of John Diggle that he’s created. We have really cool plans for him… they involve a wedding ring, but they don’t involve a power ring."
Arrow
Arsenal
Black Canary
Speedy
Oracle
possibly Wildcat
So what purpose does Diggle serve?
This is my speculation:
John should become the head of A.R.G.U.S., (Advanced Research Group for Uniting Super-Humans), as well as the UN's liaison and take the up the mantle of The Guardian.

It is getting rather silly of Diggle to be running around Starling City fighting bad guys and not wear a mask, costume, or body armor. He has (soon) to be wife and a child to look after.
What do you think?
Comment