Hi,
Our timelines are similar. I will post our timeframe below for your reference since we just got to the final step for my fiance's K1.
My fiance also has a nexus, and his passport has been with the consulate since August 2023, back when we interviewed. He has been able to cross with his nexus without issue, even up to the point of his visa getting issued. I think you will be fine to visit as long as your pick up/cross with your visa within the expected timeframe.
Here is our timeline:
NOA1: October 4, 2021
RFE: January 2023
NOA2: March 22, 2023
Interview: August 15th, 2023
Sent DS5535 back the same day as the interview
WOM filed January 2024 - which did nothing for our case
8/1/24 Consulate requested passport back (even though they still had it... lol) and repeat medical
9/3/24 Repeat medical
10/7/24 Case approved
10/9/24 Issued
10/10/24 Ready for pick up (since we picked the pick up location as close as possible to the consulate to try to get it asap)
Here's to hoping AOS is better for all of us!