If the Republicans control the Senate, then at least conservative Senators will have the opportunity to filibuster Obama's far left wing judicial appointments. There are a lot of RINOs in the Senate, but it only takes 40 conservatives to filibuster. Whether or not they will find their balls long enough to filibuster remains to be seen, but at least they will have the opportunity.
If the Democrats keep control of the Senate, then there will be no filibusters of anything unless Harry Reid wants there to be a filibuster. He unilaterally abolished filibusters of all Obama appointments except Supreme Court appointments. The only reason he did not include Supreme Court appointments is that there were none pending. As soon as the next vacancy occurs, if conservatives start to mount a filibuster then he will unilaterally abolish Supreme Court filibusters as well.
Obama's cabinet appointments will be gone when the next president is sworn in, but his judicial appointments will be legislating from the bench for the next 30 years.
So, do you see the re-institution of the filibuster rule by the GOP?
If they do that, then they will be subject to it in 2016. They may not do that.