While that may be true (looking at the history of other games) you can also pretty much count on somebody reversing the server side and putting up a reverse engineered server then.

A great deal of online games of the Dreamcast era (so early 2000s) are being resurrected exactly through this method and people are enjoying them to this day: https://www.dreamcast-talk.com/forum/app.php/page/onlinegame...