I'm relocating to Singapore and am already *A (SK EBG) and OW Sapphire (Airberlin Gold). Before I used to do mostly Scandinavia <> London, Scandinavia <> Singapore, London <> Singapore, but my travel patterns will now change: I will be based in Singapore and travel frequently to:

Sydney - 12 R/T year
London - 8 R/T year
Delhi - 6 R/T year
Various intra-Asian flights - Tokyo, Seoul, Beijing, Shanghai, Hong Kong, Jakarta - let's say about 20 R/T year
SFO - 6 R/T year (either from SIN or LON)

FWIW I think this is a conservative estimate.

Unfortunately I will be flying mostly economy/premium economy.

Questions
For members asking for information please help people to assist you, can you provide:
(1) What is your home airport?
Reply: SIN
(2) How many miles do you usually fly each year & in what class?
Reply: >100k (economy/premium economy)
(3) What types of fares do you usually buy ?
Reply: Economy, Premium Economy, occasionally Business (1/month)
(4) Can you choose your airlines and/or, class of service?. Do you travel for work and/or pleasure?
Reply: Work. No C or F
(5) Which routes do you fly most often (US Domestic, Transpacific, Kangaroo, in Asia etc)
Reply: See above.
(6) Do you have FFP status of any kind of OW or other airline at present? What is it?
Reply: *A SK EBG, OW Sapphire Airberlin Topbonus
(7) What is most important to you in a FFP?
Reply: Priority check-in, extra cabin baggage allowance, upgrades
(8) Preferred Airlines
Reply: SAS (!), Singapore Airlines (I have most experience with these...)

Based on my travel pattern, I am fairly confident I'll reach top tier in all alliances if I want to, but I am looking to see if I am missing something in terms of airlines who would frequently or easily allow me to upgrade with miles at gate, cash at gate or super-elite status.

Thanks in advance!