Well, you actually have to have a vibrant economy with supply and demand. EVE is a distinct market and isn't competing with WOW and isn't looking at Microtransactions or moving to Free to Play in the near term future. Credd can easily be converted to Store Credits for Wildstar if they move in that direction.Hmm spronk I wonder why that happened. In EvE it balances out fine. Maybe it just takes longer? Still low priced sub is perfectly fine for me if the game still manages to do well.
The design remains very good. The issue of will the game remain sub based and have a good economy are different discussions, and while I've played a good chunk of Wildstar I honestly do not know as it isn't really a game I'm that interested in playing.
My personal opinion is Wildstar is fighting an uphill battle against WOW and F2P equivalents.