Quoted from PinMonk:

Well, we know we have Wonka, then Guns n Roses in the Fall, then Toy Story in 2020, then...is Muppets still out there? It's the only one from that leaked list that hasn't happened, but I kind of hope it's not happening. Plus JJP is hooked up with NamcoBandai, so there's a slim chance one of their properties (or a mishmash Namco World design with many of them) could be a pin (which would be fantastic)
I also really, Really, REALLY hope JJP got the Harry Potter license and Stern was just trolling them. Sterns version would just not come close to doing justice to the license. I'm already bummed enough Stern got Princess Bride. That is a ready-made JJP title if there ever was one.

Quoted from PinMonk:

It's happening. Eric's designing it, and great things are expected.

Quoted from zaphX:

I could not be more excited about another Eric Munier pin! The GNR theme does absolutely nothing for me though. Hopefully it will be another big winner like pirates where the theme is almost irrelevant.

Quoted from Lermods:

i think/hope GNR will be different since Eric is on it and I am looking forward to getting one. I am probably in the minority, but I sold my POTC and don't miss it, Wonka has remained and I love playing it more than I did POTC.
I don't know who is doing TS, but that theme has huge potential.