The purser on my flight this morning says they (all the cabin) got a very similar email stating that salary and accommodation allowances are still under review, with a picture of a bunch of fingertips held together, turned upwards.
He thought it was because they will hold out the accomm fund until after the current cycle thus putting off an expense for a short term. This doesn't quite make full financial sense but then a lot of what they do makes little financial sense - eg the entire A380 program!