I believe that in the next few weeks many people and companies are going to have to adapt.
Gamblers will play on online casinos, physical casinos will have to open online casinos, companies will have to adapt their work to home office and so on.
Probably we will see many new online versions of real life casinos showing up.
It is not so easy for a company to open its own online casino.
It takes months maybe even a year for big companies to have a license to operate in a determinate nation where a lot of laws are operative.
For example here in Italy, they are talking about a PokerStars.eu thing since 3 years ago and nothing happened so far...