I must be missing something. I did the upgrade and paid 75 Euros. I now have 3 VEP 6 licenses and 1 VEP 7 license. I dont understand how people are saying they are losing something with this upgrade.
If you want the update, purchase it. If you dont, dont. If you arent sure, wait.
I will also suggest a couple of things, when Vienna puts VEP 7 on sale, which they inevitably will, likely when VEP 7 is released, by then, you'll have more details. Second, Vienna will continue to support VEP 6 to keep it at least functional for the next year or two. I imagine they arent going to update it for features, but they will continue to fix issues.
I only recently just purchased VEP 6 2 months ago and I am mildly annoyed that there was no consideration for people who just purchased VEP recently, but, it is what it is. Pay the money and move on with your life. You're going to do it anyway, just do it and you dont have to think about it again until VEP 8. Considering how long VEP 6 was out before VEP 7, Im sure VEP 8 will be years away.