Thanks all for the comments!
Some time after the introduction of the SR009, I did ask about the direction for the new flagship amplifier and at that time (fall 2010 or spring 2011, don't remember), it was undecided which direction to go (solid state or tubes).
In the actual state, the topology is likely decided since they mentioned about a "completed design" and currently into casing considerations. Also, taking into considerations that difficulties with sourcing SS parts that can handle such high voltages (especially if we go into T2 territory), it's probably fair to speculate the product will be tube based or at least hybrid type. Maybe some clueless guy like spritzer could share his views on this (and we can see how true his words were once the product is released) ;).
For the age of the workers, it is quite variable: 10+ years in average but the 3 senior staff we meet all have 20-30+ years experience, so with 13 staff, I let you guess what is the average age of the remaining staff.