Agree with this, more emphasis should have been put around World 2 being an entirely new server. A much better job could also have been done hyping the new server up for existing/returning players.
There isn't currently an existing eco based server that has an active wilderness because pking just isnt as active as it was years ago. Marketing the game towards the clan scene may seem like a good idea to you since you're a part of it, but most RS and RSPS players now are ironmen and skillers. There's more marketability in designing a grindy eco based skilling server than there is a pk server.
With the release of W2 there's nothing to stop Palidino converting W1 into some kind of semi-spawn PK server to cater to the Pkers, but I don't see why he'd do that when it would never be able to compete content wise with the other PK servers.
Or are there other things stopping clans joining this game aside from an active wilderness?
Agreed but the RSPS community has changed a lot since BS1 & BS2, so what made Battlescape active then probably wouldn't now.
Any suggestions you have for how to market the game better?