GC with EB1 - spouse addition

[thanks]

Hello,

My company is planning to file for a GC under EB1 (I am on L1A here).
I am not married right now, but hope to be in the near future.

Can I file for 140, and once approved, wait for some time to add the spouse and then file for 485 ?

If not this, what's a reasonable way to handle this case ?

Thanks

[thanks]

Hello,

Would appreciate if someone can comment on this issue.

Thanks