You are way way out. Max 2years per other solid cancers hopefully running concurrently, They will start right into PIII and these will not take as long now that they have a beaten track and experience in running the trial and its design. They may even have additional results from off label use in that period to help guide them further. Hopefully they will be all done between 2024 and 2026 at latest.
Consider Keytruda. They received the first approval in 2014. At the time, they had many label expansion trials underway. They are still knocking out new indications every year.
And I think Merck had a lot more experience and resources than NWBO.