In the meantime is there any clear statement / regulation about these remaining 1,4bn coins?
There was already a statement months ago. All unsold Tokens got burned right after the ICO. The 70/30 ratio retained.
New Total Supply ~252 Million
Circulating Supply ~90 Million (so already more than 30% ;-) )
unwritten crypto law: one should basically avoid ico where investors can only buy a small part of the coins (<50%)