There have been rumours about income tax doing the rounds for years. In reality, the likelihood is VAT-type sales tax, to be phased in gradually.
Approach is currently co-located with DXB tower, and is expected to move to JXB in the near future, serving both airports from the same approach unit. The upshot is mainly that if you're joining now as an approach controller, it's best to get a flat/villa half way between the airports which, luckily enough, fits where most DXB controllers live anyway.