Zoho Docs to WorkDrive Migration?

I logged into Zoho Docs today and saw the message "Zoho Docs will be discontinued soon. Switch to WorkDrive, an advanced file storage and collaboration tool for teams" along with a "Migrate Now" button. I guess this has been roadmapped for some time now, but it's the first I've heard of it. We're Zoho One users, so I already have access to WorkDrive. I've just never looked at it before today.

My questions are as follows:

What actually happens when I click the "Migrate Now" button in Docs?
I've historically only used Zoho Docs for external (public) sharing of marketing assets - I like that I can update flyers or whatever and have the static link still work. Can I do this with WorkDrive?
With the migration option, will my current docs port over and the links continue to work or is everything I've uploaded and links I've shared everywhere useless?
When will Docs officially be discontinued, as in people can't access the docs I've shared?
A big part of the reason why I'm using Zoho Docs this way is because of the analytics. I can easily see how many people have viewed and downloaded certain assets. Does WorkDrive have the same functionality?