It’s not even about farming with diff characters.
Let’s assume, you have an alt, you’d like to level. You have your well bombing juggermancer for WvW purposes but got some level 10 thief sitting in queensdale ready to slaughter some centaurs and gear up to do the swamp as a stepping stone to rocking Kessex Hills. You really want to melt some faces with your necro, so you queue. Now you have to stay on that character for however long it takes the queue to pop you into the map. You can not proceed with your thief, even though, that’s the thing you want to do most next to zerging in wvw.
Now, if this was implemented, it might happen, that the player in question has to abandon some world event and get no credit for it, or be kicked out of his personal story right before completing a mission, but he will get to queue for WvW on his main WvW character, while levelling his alt.
About how to implement it, I wouldn’t even make it that much of a stretch: You queue for a character. Now, you are free to switch characters and do something else, but when the queue pops, it will simply put you into the WvW map with the character, you originally queued with.
I have to admit, there is nothing “simple” about it, as it would technically require a couple of extra steps to be performed in between, but that’s still something, you could hide from the player. For the player, the only thing, that matters is: Log on with char a, queue, switch characters, go play with char b, eventually the queue pops and you are put into the map with char a. Maybe give 2 choices: “Enter in with queued char” and “Enter with current char”.
Offering the whole character selection screen is way too complicated for the benefit, but this alternative should suffice.
