UFA won't let 'Hello! Morning' be canceled. Period. It is one of their most important venues for building and maintaining brand awareness. If they have to cut back to the original half-hour, they will. If they have to take a different time slot, they will. If they have to completely rework the format, they will. If they have to pay for the whole thing themselves, they will. But will they let it be canceled outright? Heck no.
Furthermore, TV Tokyo has done very well with 'Kirarin Revolution' and 'Kanrui! Jikuu Times'. I doubt they'd torpedo their relationship with UFA over 'Hello! Morning' unless they were ready end those shows as well.
Why is it so inconceivable that they're doing two clips shows in a row to cover for a packed schedule? We had a clips show just a few weeks ago, when everyone was preoccupied with the Wonderful Hearts / 10th Anniversary concert tour.
So, what could preoccupy MoMusu from the middle of March to the beginning of May? Goodness me, I do believe it's the Sexy 8 album release and concert tour.