Need help for deciding on a new FFP, was in QR programme achieving gold, thinking if I should abandon ship because of the recent "enhancements"...

Questions
For members asking for information, to help people to assist you, can you please provide:
(1) What is most important to you in a FFP?
(upgrades on travel, priority services when flying the airline, extra baggage allowance, good award redemption rates, better award access, free - discounted lounge access, etc.)
Reply: upgrade/award ticket/lounge access, basically I need at least Oneworld sapphire

(2) How many miles do you usually fly each year & in what class? How many flights/sectors?
(<25000, 25000-50000, >50000 miles - <25, 25-50, >50 flights?)
Reply: >50000 miles, mostly in discounted economy, <25 flights, I mostly fly long haul from HKG to LHR, around 4 round trips per year, together with local short-haul trips both from LHR and HKG

(3) What types of fares do you usually buy?
(First, Business, Premium economy, Economy, cheapest)
Reply: Economy discounted to cheapest

(4) Can you choose your airlines and/or class of service? Do you travel for work and/or pleasure?
Reply: HKG to LHR is for study, others is for leisure

(5) Which routes and airlines do you fly most often?
(US Domestic, Transpacific, Kangaroo, in Asia etc)
Reply: Asia-Europe flights, BA, CX, QR

(6) What is your home airport?
(SFO, SCL, London LHR, HKG, Singapore SIN etc.)
Reply: HKG and LHR

(7) Do you have FFP status of any kind in OW or other airline? What is it? Do you have any miles banked in a FFP?
(AA Executive Platinum, QF Gold, UA 1K, LAN Comodoro, etc)
Reply: Qatar gold pending

(8) Preferred Airlines? Most common Airlines flown on?
Reply: QR/BA/CX, any Oneworld airline which operates out of HKG/LHR basically

Thanks for the help!