It sounds like DW is on the path to another set of massive expansions, though these rumors are very hyped up by the online DW fan community. From the sounds of it, their next new roller coaster will be something entirely new to the industry, or will at least have a surprising gimmick of some sort. I was assuming that after the massive success of PK at SDC, DW would get their own version.
This year is still up for grabs as far as we know, though it sounds like it will be another ride. DW sure is buying them up nowadays; when was the last time they added anything other than a ride? Maybe a Screamin' Swing is in the works.