HR call after superday, thoughts?

Wanted to get insight on this, because this is new to me.
I finished interviews at a MM bank and got very good feedback: personally felt that I crushed the superday. I then got an email the day after (today) asking to speak with HR. During the call, I was asked very basic questions about my standing (like the standard background questions you answer online when submitting an application). I was also asked if I was in any processes, if the start and end dates of the internship worked, and if I could commute to the office, among other basic questions. Thing is, they also said several times that “the team is very keen on your candidacy” and that I should expect to hear back by eod tomorrow. Should I be hopeful about an offer? I’ve never been in this situation, so curious as to what I should expect. Thanks!

Update: I got the offer!