Madoka has no plans of airing the episode next week, and even more, they have no confirmations if they are ever airing the episode on April at all.
"Apparently. MBS will not air any more of Madoka episode THIS MARCH, and they don't even know if they will actually air at all. Same for TBS. It is likely that entire two episode of Madoka getting cancelled."
MBS and TBS have said in 2ch that it will be announced when the episodes will air.
More info here...