I think the idea of a type of pokemon market would be neat so you can post your pokemon and people can buy on the spot. no more trying to meet up in a certain region or town. just buy the pokemon and it is transferred to you. also in this sense it would a good place to put lend pokemon. people can go on an choose from a list of lendable pokemon select what they want and lend them. maybe the owner can put pre determined times for each pokemon or have the lender be able to choose up to a maximum of 5 days. the same would be nice for tradeable items too. it would really cut back on a lot of the endless spam you can just post an item on the market and go. 

Edited September 27, 20223 yr by Ashinypokemon

As far as I'm aware a "Pokemon Auction House" is on the developers list of updates they plan on doing to the game.  There is no timeframe listen however, but I think they are looking into implementing it.

It's coming soon

An auction house is already on the works.