^i'm not saying #14 isn't a hit, I thought "DL" had a good video, radio play, and position on the charts..."I Gotta Feeling" just seems like the same as that though, "BBP" still has great airplay and downloads, not to mention the recent AI performance so it's looking like it still has some heat, releasing "IGF" seems like it would stall around the top 20s IMO.
Hopefully they don't pull a "Circus" and rush its release while BBP is peaking. I think they need to wait until the album is out, but I doubt they will.