I think they found there wasn't much call for a nobbled VST.
It seems they've worked out it's more profitable making plug-ins work on as many platforms as possible rather than trying to lock them into their own. If you are going to introduce a prorietary new format you need a better strategy than just adapting a readily available technology. One company is making a huge success out of proprietary plug-ins already and although they'd been planning many years before it didn't get launched until a good while after the PC appeared it's already showing a marked growth in that companies fortunes and theres new stuff for it every week.
It's funny I got a hostile reception from many upstairs by suggesting that might be the case when modules first started being introduced. A certain professional advocate of Cakewalk's even told me and the rest of the forum that the costs of supporting a plug-in on many platforms was prohibitive......I even got thrown off and banned for disagreeing with such a well-known music biz luminary (and I even got his name right!!!) and pointing out the support costs should amount to no more than a percentage of sales. It seems more bizarre now recounting that than it did when it happened, but there we have it.
Now everyone is saying how cool it is now the PC-2A has been made to work everywhere and it can now accomodate a side-chain input.
Now you can put an FX chain in the Pro-Channel I can see even less point for a new module, I think we might see some more plug-ins that happen to have a Pro Channel option but they will be available for the wider market. I see no future at all in a PC only module, I think it's something that will now be filed in the same place as 'Beatscape' and 'Voice Mail Recorder', or the place I call "I did tell you but you didn't listen".