It will be another addition to the already confusing "Vegas" lineup of offerings. Vegas "Edit", Vegas "Movie Studio", Vegas "Pro" and now Vegas "Post". Just another offering to confuse you even more and make you predict the future of what you may or may not need within "Vegas". It will come bundled with some 3rd party plugins and some other Magix software which needs to be further promoted, all at a higher price point of the other Vegas.offerings, where those additions you're investing in eventually won't work with future releases of Vegas.
You guys both have it a bit off from what I can tell. Vegas Post is not a different version of Vegas, but a collection of apps that include Vegas Pro, Vegas Effects (think Adobe After Effects), and Vegas Image (Think Photoshop/Lightroom). The 3 apps all natively work with each other, just like Adobe's family of apps does.
The only thing I'm not sure about is if Image and Effects will be able to be purchased separately for people who bought standalone Vegas Pro.
Magix has been playing catch-up and is aware that Vegas needed an integrated compositing function to help compete with BMD Resolve's integrated and also available separately Fusion (I still use and prefer Vegas at home, but unlikely to upgrade from 16 and thinking that if Resolve introduces full screen second monitor preview without one of their cards, the race will be over).
What hitfilm offers is miles ahead of Resolve, so this isn't playing catch up, it's leaving them in the dust. As for the "race", it's going to take a lot more than that, especially with the new features in Vegas 17.
I recall reading a comment from BorisFX that didn't give me hope VegasPost would come with a free/cheap version of Mocha (basic version) . They only mentioned support for the full expensive version. It would surely only be a licencing issue if Vegaspost doesn't come with a cheap Mocha. Such as if they believe their built in VegasPro planar tracker is just as good, which surely wouldn't be true, unless VP17 contains basic mocha, but BorisFX have already said it won't
I'm very curious about what it is exactly. Currently, I have both Vegas Pro and Hit Film, and honestly, there's no problem now working with the two, especially since Hit Film renders out nicely in .png sequences, and Vegas is awesome for importing .png sequences. I'm curious because Hit Film is trying to become an all-in-one video editing program, but seems light years away from where Vegas is for that. And of course, Vegas Pro can do basic composites but isn't really a compositing program and lacks 3D space. So I'm just curious what the nexus between them will be. Perhaps some sort of plug-in? IDK.