What he meant is that special towers will all be new. Special towers from the current Kingdom Rush will not be available on the new adventure, we are making2 new special towers for each

根据delebru的论坛留言，一代中的八个高级塔将不能在二代中使用，而更换成八个全新的高级塔。目前已知的有：死灵法师塔，刺客塔，以及最新的弩箭塔

关于弩箭塔：
Crossbow Tower (No final name yet)
First female tower
No special powers showed on this picture maybe we will show some on the next post
详细信息未知，很有可能将会在下一个sneak peak中公布