Vuforia Embedded into Unity - Lots of questions

So, I now know that in the future Vuforia will be embedded into Unity as part of Unity, this has brought up a lot of questions for us as we try to find the best tracking solution for our AR needs: -When exactly will this integration occur?  -How will this affect the pricing of Unity? Will existing Unity license be able to use the integrated Vuforia functionality without additional cost? Right now Vuforia is ridiculously expensive, so we're worried that now Unity will become significantly more expensive. or worse that Unity apps using integrated Vuforia stuff will now have additional monthly costs or something based on users/targets/whatever.  Thanks!