I apologize that we hadn't replied to your question. The good news is that we've been hard at work making vprobes better. So no, it's not going away. We plan to roll out a lot more information about vprobes shortly. In the meantime, feel free to email me directly (ricardog@) and I can provide more details.
And, just briefly, if you have WS 9 or Fusion 5, you no longer need the vprobes toolkit. The vprobes CLI and the Emmett compiler are not part of the standard installation. We need to update the README.