Thanks, Sfx. I recommend anyone reading this thread go read that post. Now.Vanhoef has an updated, yet separate, post...
I think I may need to amend my statement that all new hardware will be required to move to WPA3. The most compute intensive part of WPA3, 192 bit encryption, is optional. And according to Vanhoef's post, is required only during authentication. That would not slow traffic.
Easy Connect and Enhanced Open are also not part of WPA3.
That leaves the new handshake. Any thoughts on how compute intensive that is?
I agree with Vanhoef's conclusion:
I'll go ask some vendors about their plans.. It seems the Wi-Fi Alliance focused on keeping WPA3 easy to implement for vendors, but not on improving the security of users.