We don't know yet if the B737-800 can run on the Switch, it might not be powerful enough.
The Nintendo Switch platform is also not suitable for lot's of updates in a short period of time. It takes a very long time to prepare and approve a game update. Nintendo prefers games that update rarely, ideally never.
Hello. If I understood well, switch players won't get abandoned? Like, we could expect an update at least once a while with some new airports and--who knows--a new airplane?