First off, PPVs are not going to be specially extended; they will run the same amount of time as Breakdown does (Sunday to the week after's Thursday).
Also, we'll now only have six or so PPVs a year. It's going to run four Breakdowns and then a PPV.
The remaining PPV choices this year:
Summer Sanitarium (June 1st; 2nd Biggest PPV)
Blood Stained (August 10th; Hardcore PPV)
Hell Games (October 19th; Biggest PPV)
Step Up (December 28th; PPV w/ a special match)
PPV choices may change depending on the year. Meaning, next year, it might not be Blood Stained, but rather something else. Hell Games & Summer Sanitarium will probably always stay, as they are the biggest ones.