Continue together.
The work, evidence, and relationship still hold up. The existing deal continues or everyone signs a change.
Continue without one party.
A person may step away while the business continues under the agreed transfer, buyout, transition, and credit terms.
Pause or close.
The project may not justify more time or money. The controlling agreements and applicable law decide what happens to assets, licenses, confidential information, vested rights, unpaid approved compensation, and the founder’s protected disclosure.