Hey! Thought I would also offer some advice!
I am a current member with NYT and have done a lot of their ambassador/facillitation work.
@blackcatmeow has already given some really useful advice however, I just want to offer you a wee bit more detail if you'd like?
First of all, in my audition, I didn't change my monologue but I was also doing a very obscure Scottish play which I think worked in my favour. If you feel like you want to change monologue, go for it, but the people in the audition room are unlikely to worry about whether you did it in your self-tape as they generally don't have many notes on this. I have been in the room of some auditions, and generally speaking, it's about the monologue you have on the day. Make sure it suits you, make sure you enjoy performing it and make sure you know it comfortably well - but not too well of course!
Secondly, the questions are more personalised usually to the person who is auditioning you. In my own audition, I was asked about instruments I play as I took a song I wrote to my audition. I think I was also asked about where I come from because my monologue was partially in very broad Scots and I am a Scots speaker. The questions are typically based off your recall audition and things they pick up in that room.
Just another note would be, you are likely to be re-directed and I would reccomend you go for it. I have personally been redirected to do my monologue like I am having a conversation with someone however, I had friend be re-directed to do his monologue like he was a weather presenter on top of a windy hill in the rain. So with this in mind, you have just go for it, that's what they like to see.
Additional advice would be, be yourself and don't be hard on yourself. You've come this far and already beaten some hefty statistics.
Good luck! 😊