"House" question...?!

"House" question...?

I am confused by the last episode of "House" for this season.

Are the actors that play Foreman, Cameron and Chase being replaced by other actors/characters? Or is the departure of Foreman, Cameron and Chase part of a story-line for next season with their eventual return to the series?

2 weeks ago
Does anyone know if any of the actors that play Foreman, Cameron and Chase are signed on for future episodes?

Chase and Chmeron were locked in to new contracts at the end of last season. Foreman was the problem. Omar Epps needed to take care of his movie career. Apparently he has and will be returning this season. So no one is leaving and House will do something brilliant to get Foreman back.