The developers behind the extremely popular MMO ‘Guild Wars 2′ have announced that ‘Guesting’ will finally be on its way. There are a few technical limitations to the service however, which was mentioned earlier today. 
 
On the bright side guesting will be possible in the very near future. The service will allow players in one world to enter a friends world to play together. The service is expected to start on January 28, 2013. Because of this service however the “free world transfers” will no longer be allowed. Martin Kerstein states on the official blog, “With the current restriction of one transfer every 7 days in place, make sure that you will be on the world you intend to play on before January 28th, because after that date, you’ll have to pay a gem fee to transfer worlds”. Players will be able to use the “World Selection” button to meet up with their desired friends.
 
Although the announcement came with much fanfare, the ability to cross regions will still not be possible. “There are two databases: European player data is stored in our European datacenter, American player data is stored in our American datacenter. This is to ensure that people in these regions can still properly play in case there is an issue with the connection between the datacenters” states the developers.
 
This technicality will prevent anyone from joining another region, even if their old friends, or new friends, are located there. Players can transfer to another region, but guesting will not possible anytime soon.
 
source: gw2