According to a tweet Nigel made, there will be no results show for SYTYCD this season, which will pick up right after the AI finale, as usual. Instead, it sounds like they'll be giving the results at the beginning of the following weeks' show.
I don't know how that will work once they start switching partners. IMO, they should let everyone dance the routine they learned, then at the end, give the results from the previous week. The judges can base their decisions not only on the previous week's performances, but also the current week's performances. That way they aren't penalizing both people in a pair if only one messed up, or is just not very popular.
My other thought is, can't they just make it a 1/2 hour show on Thursdays? I agree, an hour is WAY too long. 1/2 hour is more time than is really needed too, but there can still be a big name or up and coming act and the results. It just wouldn't be as drawn out.