This is all just speculation but here it is:
Also, here is what the Pistons new logo may be. These caps are the 2005 Draft caps.
These caps were found over at Eastbay, but now when you click the link, strangely the Piston and Pacer caps have been removed for some reason. I like the Pistons apparent new logo, but I'm not sure I like the Pacers. Hopefully, this is just the Pacers secondary logo.
One of the reasons I think that Pacer logo on the cap may be our new logo/secondary logo is because, I have seen that logo a lot this year. From the Pacers Playoffs posters to the Pacers season tickets.
Here is the link: