I'm also all about the new content, and I will probably enjoy it, but it'll take some of the shine off Terraria. These games are very dissimilar. Terraria is a very distinct and rich indie game with mechanics-changing features. DD, as much as I played it, is a fun, but unabashedly generic, freemium tower defense / MMO beat em up. Of course I can see what part of that game Terraria covets: a means by which to keep players occupied interminably whom tend to gobble up new content in hours and beg for more. I merely have concern this will not be very Terraria.