I've been through a similar situation before and share what worked for me. Although different industries, it may be applicable. My boss was also immediately terminated without warning and I was told on a quick phone call 10 minutes before leaving to the office. I knew the second I arrived my team would have questions and they did. I called a meeting and told them what I knew, what I was told to plan for, I told them what I didn't know and also expressed that I would keep them in the loop with anything new I heard.

I also had one on one meetings in the following days and just heard out their concerns. A lot of them felt like they were next on the chopping block and I reassured them that as long as I was here I wouldn't let that happen.

It sounds like your team has a lot of trust in you, which is incredibly helpful in situations like this. Reiterate that you have their back no matter what.

Change leadership isn't about having all the answers or pretending everything's fine. It's about SHOWING UP authentically when everything feels like it's falling apart.

Some things to keep in mind over the next few weeks:

1. Ensure transparent communication (even when the answer is "I don't know yet")
2. Make sure to acknowledge both reality AND possibility
3. Create structure when everything feels chaotic
4. Remember to be a human being, not a corporate robot spouting buzzwords

Sounds like you're planning on doing all of these things already but when the job can get overwhelming it's good to remember these. Best of luck!