Ref new package. No particulars. Will happen. Date of implementation unknown. Based on pending signatures, should be this year ... hopefully.
Ref which airport is busier. Hard to really compare. Doha has 3 sectors open at peak times. Vertically sectorized. TMA (Radar) / Approach Radar / Director. We do our own sequencing and holding, with a possible 4 stacks running simultaneously. Serving 4 Runways, with SOIR at Hamad International. Transit traffic is also given a service.
As to the Acc sector - again, nothing tangible as of yet.