It appears there are plans for a John Cena vs. Kane feud on Raw Supershow. The match is officially advertised for the December 30th Raw house show from the XL Center in Hartford, Connecticut.
While house show matches are not firm in terms of their reliability, they show the direction the WWE creative team is leaning. Given the amount of times things change, there is no way to say the program is 100% until it actually kicks off although the framework was laid with Kane attacking Cena on Monday.
As of this writing, Cena is advertised for WWE TLC on Sunday and Kane is not.