There might be new ones. Previously, there was a request on the shop main page, asking for customer feedback/wishes for a new Simped model. I sent an email and also got a nice reply, which mentioned already a production stop.
The picture must be of the new model (at least a prototype), the email mentioned reworked parts in aluminium and new footrests, as well as some adjustment possibility, reworked electronics. Also, release won't be before August/September 2012, and they might not be as "cheap" as the old ones. Hopefully, that's not definitive yet.
However, the text on the shop homepage has me a bit worried. It mentions a production stop of Simped pedals, which is somewhat ambiguous. Does he just mean the old models, or does he write about "all" Simpeds?