Mork play the Legend Club in Milan on 20 October rather than the Slaughter Club, which was the venue announced with the date. Everything else stands: the same night, doors at eight, tickets through Dice.
A venue change a week out is usually either a capacity problem or a building problem, and nobody has said which this is. For anyone holding a ticket it makes no practical difference beyond the address, since the promoter is honouring what was already sold.
The night is part of the Norwegian band's first European headline run, seventeen nights in seventeen days, which leaves no room to move a date even if a room falls through. Moving the room instead is the only option on a schedule like that.
Mork remain a one man band on record and a full group live, and Monolitt is the album the set is built around. The Legend Club is the larger of the two rooms, which is the reading most people will take from a move made this late, though nobody at either venue has said as much.