I am taking on a 2nd round interview (previous one was with 2 seniors and was essentially about "fit" questions) at PwC next week and all I know so far is that it will last around 2 hours. Should I rather expect a regular case interview (with some PEI questions) or a written one ? I would go for the 2nd one but I am unsure. The position is a consulting internship. Thanks in advance.