Naturalization - Passport expiration

Hi all,

My wife and I are planning to apply for the british naturalization in October through ILR (Tier 2 visa) + 1 year.
I have a few questions:
- Do you keep your original documents when you have applied, especially your passport and BRP, so we can travel while the application is processed?
- My wife current passport will expire in December 2020 and we plan to apply in October/ Early Nov is it a problem?

thanks
Mazen

- Do you keep your original documents when you have applied, especially your passport and BRP, so we can travel while the application is processed?

Same as when you applied for ILR, NO originals are sent to UKVI. You upload on UKCVAS porta.

- My wife current passport will expire in December 2020 and we plan to apply in October/ Early Nov is it a problem?

No issue.