Speculative application, what to expect?

[Purplesndteal]

Long story short... I sent my CV to a web design agency on Tuesday. I met them on Skype the very same day and now will see them on Monday to meet the team. They would create a role for me. I'm very excited but this is uncharted territory for me. Would it be a formal job interview? More of relaxed chat about expectations? I know nobody can really answer but maybe somebody has had a similar experience in the past.