New Off-Cycle Analyst Interview

I've had a drawn out process for one of the banks (think LAZ, HL, EVR) where I started interviewing for a role in one group but higher ups killed the opening. They liked me enough to pass me onto another group in the same office where I interviewed with everyone except the MD. This group made me a verbal offer but I had to go in to meet the MD to "check the box" but the day of that meeting I got sick and had to postpone. They were out of town traveling the next week and by the time they got back, higher ups placed an internal analyst into the group. So then this group passed me onto another group (this time not in the same city, but same state), where I've had numerous phone interviews with seemingly everyone in the group (1 MD, 2 Directors, a VP, and an Associate). They're having me come down to the office in a couple of weeks to meet in person and I'm just wondering what I should expect when I get down there. I've literally talked to about 15 people at the firm at this point, so I'm not sure what else they want to know other than do I mesh personality-wise, but I thought I'd throw it out there to not be blind-sided.