Flexible print functionality
Easily print single cards or sets of cards (eg one Kanban column, or the full Kanban Board)
You can already print cards and kanban, using the print action of your browser.
You can also filter your board to only display one column and then print it.
Do you need anything else ?
Yes, you can currently print a card, but that gives a functional overview of all fields, not something visually attractive you might stick on a wall... so please check how you can print cards in Trello using the 'Print your Board' power-up! That allows for nicely formatted A5/A6 cards that could be used on a physical Kanban wall.