The WASD v2 will be available with Clears.
That will be a special edition with white plate and non customizable key caps called the 'code', I believe.
What is the cheapest way to source clear switches then?
It probably depends on how many you want/need.
And if you care if they are new and/or used. You could buy a cheap board with clears if you can find it and desolder them.
You can get them from 7bit's group buy on DT, there was recently a groub buy on here for clears and some vendors sell them mouser, rapid etc.
I heard cherry would consider making clears with lighter springs if they got a large enough order.
And the stem would be purple/dark pinkish I think.