Each office level will have different requirements. We don't want to spoil too much here about what we have prepared, just wanted to let you know that the new things are coming along fine. It might be that we will move one certain building to the following update as it is one of the hugest buildings we've ever did and we're not yet sure if it will be ready in time.
To give you another small hint on how we adjusted certain mechanics for office needs... well, take a look yourself:

