We say that the Lightning Network will solve scalability issues.

Let's assume for a second that the Lightning Network is deployed to the mainnet in its final form and that hundreds of thousands of users start using it.

In this scenario, we would most likely have thousands of channels open and each user would be able to reach any other user or company with one or more hops.

How likely it would be that, at this stage, all Bitcoins will be migrated over to the Lightning Network, that channels would be kept open all the time, and that, basically, we would trade with a token issues on an alternative network (the Lightning-Bitcoin traded on the Bitcoin network)?