I think is a great idea ..... with the X-factor hype she should release 2 more singles and push "Femme Fatale" to the 1M mark in the US.
its like a big pause .. and then Femme Fatale continues.
But lets be honest , after the flop of "Criminal" her team must be like traumatized they won't release "Inside out" that song would flop hard on radios .. and I think if there are plans of continue the FF era they need Britney on the radar again.
So, sadly the wiser option for a single in order to bring audiences again is
"(Drop dead) Beautiful". (even though I don't like too much the song, strategicly is the best option).
then she could release a final december single "
How I roll" , I'm confident it would slay radios, at least more than "inside out".
