The official site now has their write-up about Chopper or, more formally, C1-10P (note how the "1-1" looks like an "H") plus the same video and images, in addition to a shot of the Saga Legends Chopper figure. The figure looks pretty simple without any dirty paint wash, and hopefully the arms can at least fold out, even though this is a simple figure.

The article mentions that the show takes place four years prior to ANH, which is a little different than the five years mentioned at NYCC well, I believe Hidalgo said it was 14 years after ROTS, so maybe they truncated the timeline or something? It was probably just a ballpark estimate anyway.