Japan PR Application but contract is changing in April

So I applied for my PR but my contract will change from next April. 5 months away.

I’m still in full-time employment at work and my pay is around 6M yen still.

But we have been in more talks about a more flexible contract. And I might become not Seishain. My Emplyement certificate doesn’t say “Seishain” just “Shokuin”

Do I need to change my application? My pay is basically the same just my duties have changed a little.

Thanks a lot!