I'm not an expert, so somebody may be able to give better responses.
It looks like IPv6 addresses have access to all 65,000 ports, whereas IPv4 addresses need to 'forward' them. I don't know about other VPNs, but the one I'm using only allows forwarding 1 port at a time and I don't get to choose it.
With IPv6, I hope to be able to have multiple ports open to make it easier to host multiple services.
Meh, if you're competent enough a degree really isn't worth anything.
Your portfolio is more important.