I guess it depends on how big instances get. The lemmy world instance currently hosts the casual uk community and its picking up traction across other geographic communities also.
I think migrating communities will likely find the communities in instances that are the "primary" versions, we just need those to reach critical mass.
I think the big risk is instances going dark or holding communities ransom in future. All of casual uks content being hosted in one instance it's crazy dangerous for the longevity of that community. (Unless I'm not understanding quite how it works)
Zelda is awesome.
Lotr and brando are awesome.
Arsenal are awesome.
Guitars are awesome.
Sounds good to me.