Are the number of users that use adblock actually increasing? I feel like we are already at a saturation point where anyone who would use an adblocker already does. Adblocking has been around longer than these big sites that use ads as a main revenue source yet they managed to become big in spite of adblocking.

> Will the government move to rule adblocking illegal?

Absolutely not, serving ads is not a protected activity, you can't force someone to consume something they don't want to.

> Will websites engage in sophisticated technical anti-adblock measures?

Already been tried, see anti-adblock and its counterpart, anti-anti-adblock. The solution to adblock is product placement and sponsorship, which has already extremely prevalent.