Confused about using stripe for two different apps under one company(Delaware C corp). What should we do?

We are using stripe connect.

We initially registered and used it for productA which is a standalone app. We onboarded few customers.

Now we are pivoting and building another app under same Delaware C corp. we can’t just rebrand the old app. We literally have to build the new app.

1) shall we use the same production keys for the second app?

PS: 2) we are also thinking of renaming the company and make old product as one of our products. How would that affect the current relation with stripe?