6-8 I think, looks like two benches facing each other and from the looks of the concept art the benches flip up like the monorail middle benches used to, so you can fit a stroller in there.
Not sure how routing will be handled - if it'ss merely point to point or if the CB station will just put you on the right line for your final destination. Presumably you'd hop on/off in the most basic scenario.
However, these systems are entirely capable of putting vehicle on/off the line in the station o in theory they could get routed to a destination by vehicle. But, that's more complicated than it needs to be.
Not AK, but Epcot and DHS.