Graduate programme: rejected then called back about an opening. What should I expect?

Hi everyone. This past december I applied to a graduate programme at a major global bank. I got to the final stage but was eventually rejected.

Last week - 4 months on - I received a call from HR, which basically said: "We see that you got to the final stage. Your performance was good but due to low intake and extreme competitiveness of the programme you were rejected. However, the need emerged for more graduates at both the headquarters and a regional office. Would you be interested in that?"

I answered yes and she said that someone would get in touch with me in two weeks. No further details and I didn't think it appropriate to ask whether I was about to be offered a job yet.

My question is: based on your experience, am I about to be made an offer or will I have to go through another evaluation process?

I can guess why I was called back - either more people than expected reneged on their offers or business requirements have changed - but I cannot imagine what my chances of getting the job are at the moment. Any thoughts? Thank you in advance!