Yes, artist's impressions can be fun designs. But to me this just
resembles a padded out and upgraded 21st Century adaptation of the
Russian Tu-144 'Concordski'.
And don't forget that the American tax-payer, through NASA, recently put
a Tu-144 back in the air at enormous expense for an in depth research study.
Thus all the information obtained will have been made available to
Boeing, so as to be incorporated into this 'Boeingski' design package.
The forward Canards on the 144 do not interfere with jetways, as they
are retractable.
Now if Boeing, or any other manufacturer REALLY wants to take a Giant
Leap Forward, then the first to come up with a Starship Enterprise
'Energizer' people mover to beam me around the world in a split second
will really corner the market! And make all the flying machines, tens
of thousands of airline employees and the PPRuNe Bulletin Board obsolete.