Well, I guess the Arcade really is pointless now, isn't it?
Besides the occasional dumping of minerals into the gates, I see no point of even stepping foot in the Arcade.
The new Missions tab on top of your screen allows you to start/join parties of any gate wherever you are.
I don't really have anything against this but I take a step back while realizing this and think:
"Oh my, have we gotten lazy."
EDIT:
Totally forgot about Krogmo's store located to the left in the Arcade.
Thanks Rangerwill for reminding me, haha.
BUT I guess the main point of the Arcade, which was a way to access the Clockwork gates, is meaningless now.
I mean, Sullivan and the Krogmo stuff could've easily gone to the Bazaar or even the Town Square since playing PvP doesn't really have anything to do with the Clockworks at all.
I don't like that part :/