I’ll add my voice to those wanting Cantha to make an appearance – it was a magical place to go through in the original Guild Wars, especially the Kurzick and Luxon areas. From a lore perspective it’d be fascinating to see how things have changed with the Ministry of Purity / Kurzicks and Luxons being subdued / Echovald Forest and Jade Sea recovering from the Jade Wind.
From a game-player’s perspective too it’d be refreshing to see a whole new change of scenery. I’m all for opening up more of the existing in-game map, but for ANet to write off Cantha completely would be an absurd and damaging decision.