I'll take that bet.
'cause it's not Vicki. She'd be too young. It can happen, but I doubt she'd have a well enough established business that quickly out of college. Dora's older, and is still running CoD like it's a one-woman show, with only some part time help.
Jeph's given us very few older characters, though. Most are parents, the previous generation. Then there was Amir, but he was in the direct social circle.
I'm guessing it would be someone about Amir's age, from a half-generation older (older than the main characters, but not as old as their parents). Someone who had the time to build up a business, with a regular staff, and maybe even a manager (I get the feeling Padma does things like scheduling and handling emergencies like burning dough hooks. but not much more).
It'll be interesting to find out!