They're changing VP around completely in the back end, so that it travels with SP. When you delegate 100% of the VP for that delegation will be taken out of your account, and you'll be left with less VP if you weren't at 100%.
Also, when you power up or get delegated to, you'll get the new VP at 100% even if your account was lower.
This is kind of confusing to explain but it should be much more intuitive in practice.
Still kinda confusing for me 😂 never mind that, will experience that once it is implemented. Thanks for the info!