Well my guess is that making a new instrument is a lot of work no matter its size and voice count.
These days Pym must have good implementation of fundamentals like voice voice code, USB and MIDI drivers and parsing, voice allocation, MIDI tuning standard, sequencers, flash memory management and all that jazz. But there will still be a lot of work to do such as specific voice features, front panel event handling, interaction with DSPs and so on.
Then add all the hardware design, the front panel user interface/graphics design and all the mechanical features such as casing, wheels and keybed. Not to mention production planning, ordering of parts, getting circuit boards produced, test procedures to be used in the outsourced production facility, a manual, product photography, the web page describing the product and the product announcement video to be thrown at the synth hungry crowds at time of release.
I can easily see them wanting to take six to nine months or more to make a new instrument from idea to shipping product. Even for a small voice count module like the ones I am after.
In other words: While I would not be too surprised if yet another jewel is flashed at next NAMM it could easily be a smaller instrument too.
. o O ( the intricate art of impatience )