Switching from Tier 2 (G) to Tier 1 (Entrepreneur)

Hi,
I am seeking for some advice regarding my Tier 1 (Entrepreneur) visa application. I have been called for an interview after 3 weeks. So I would like to know what are the possible questions they are going to ask so that I can prepared myself and be confident.
Since I am switching from Tier 2 visa to Tier 1 I haven't opened my company yet. I have submitted my business plan with Forecast of Income Statement for 5 years with all other necessary documents.
I have found the list of questions for those who had already opened the company and for extension but not for my case.
So, could anybody please help me in this regard?
Thank you in advance.

There are many interview questions lists on the forum.Many of the questions will be SPECIFIC to your business plan

uk-tier-1-entrepreneur-visas/tier-1-ent ... 58620.html
uk-tier-1-entrepreneur-visas/uk-tier-1- ... 21722.html

The interviewer will also ask you abut previous employment, he will ask about your office full address, telephone number,etc, he will also ask why you want to switch from Tier2 to tier1.